Wednesday, November 30, 2005

宣言诞生记


 


112328日,我有幸作为中国青年代表,和来自全球26个国家的近100名青年代表,一起参加了在加拿大蒙特利尔举行了世界青年论坛。会后我们发表了《我们的气候,我们的挑战,我们的未来——2005年蒙特利尔国际青年宣言》。作为《联合国气候变化框架协议》第十一次缔约方大会的平行事件之一,青年宣言成为这次大会特别的声音。


我们来自五大洲地不同国家,从中国到加拿大,从南非到密克罗尼西亚,从北美到西欧,说不同的语言有不同的文化,年龄从18岁到26岁不等,有着不同的专业和工作背景,却都怀着对全球气候变化问题的关注和热情。经过五天的深入交流和激烈讨论,从不同角度选择最为重要的话题进行沟通,最终达成并投票通过了这次宣言。


宣言共识的达成是一个激动和艰难的过程,和联合国气候谈判过程是类似的。我们应用公共空间方法(Open Space Technology),每位青年都可以根据自己的背景和兴趣提出相关的话题(Topics),在青年圈中公开说出来并贴在论坛的墙上(公共空间),可以很容易的看到自己和所有其他人的话题,很快持近似或相关话题的组成一个小组(Team),自主讨论,有人主持和记录,头脑风暴,形成小组讨论报告。


反复创意、沟通、评论,以小组提交话题报告到起草委员会,起草委员会根据各小组报告讨论形成宣言草案。又经过两轮大青年圈的头脑风暴,反复自由讨论和评论宣言的标题、话题、结构、内容以及语言等等。当所有评论的声音都停止了,掌声雷动,因为那一刻见证了我们为之努力的目标——共识!


在论坛中,我和我的同伴做了一个“全球变化下的中国”的报告,从环境的视角,概略地介绍了中国作为一个发展最快的发展中大国,所面临的挑战和为气候变化所做出的努力。在平时的交流和报告后的提问中,我都感觉到他们对中国的关注,但还缺乏了解甚至误解,我也许不能代表中国青年,但也是在这个时候,我第一次这样深深的感觉到,我要告诉他们一个新的真实的中国。


在与一个挪威青年的交流中,她说,“我从很多媒体了解到,中国不重视环境,污染很严重,不过我现在知道这也许不是真的,因为你来了”。我很感动,因为世界也在倾听中国的声音,中国作为一个成长最快的发展中大国,正逐渐自信地承担起大国的责任。于是,我希望我们可以在更多的场合,更多的地方,听到这样的声音:Here comes China!


 


 

2005蒙特利尔国际青年宣言


Our Climate, Our Challenge, Our Future – International Youth Declaration, Montréal 2005


我们的气候,我们的挑战,我们的未来——2005年蒙特利尔国际青年宣言


 We, the youth of today and leaders of tomorrow, face an unprecedented challenge as a result of global climate change and share in the responsibility of addressing it.  Taking a step back from the complexities of compromise and negotiation, we cannot help but think the purpose of the Convention has been sidelined. We are frightened by the scale of this emerging global environmental crisis.  We stand in solidarity with vulnerable communities who are disproportionately impacted by climate change, including low-income people, marginalized groups, indigenous peoples and people living in geographically vulnerable areas.  As stewards of the Earth, we demand the right for all future generations to inherit a healthy planet.  We make this declaration knowing in our hearts that Beyond Kyoto – It’s Us!


我们,今日的青年和未来的领袖,面临前所未有的全球气候变化的挑战,拯救地球是我们义不容辞的责任。回顾艰辛和复杂的妥协与谈判过程,我们为日渐严重的全球环境危机感到忧心忡忡。我们和脆弱社区的人民紧紧团结在一起,包括低收入者,边缘人群,地方百姓,以及生活在生态脆弱地区的人民,他们更容易受到气候变化的影响。我们作为地球的乘务员,为所有后代继承一个健康的地球的权利而战。我们在此同心郑重宣言——超越京都,责任在我!



Our commitments


我们承诺



Youth around the world are committed to protecting the climate. We engage our communities in participatory action and encourage the respect of humanity’s place in nature, cultural diversity, indigenous rights and traditional knowledge.  We are supporting clean energy through our own consumption choices.  We are moving forward to expand our involvement at the domestic and international levels and encourage broader participation on the part of our peers.


全球青年承诺保护气候,我们将促成社区参与行动,鼓励尊重自然、尊重文化多样性、尊重本土权利和传统知识。我们将通过我们的消费选择支持清洁能源。我们将在更广泛的国内和国际层面上参与,并代表青年鼓励更广泛的参与。



Our demands


我们要求 


We further the call of previous youth COP declarations for a permanent, funded youth constituency to be included in the international climate change negotiation process by COP 12.


我们承继此前的青年宣言,继续要求为青年代表提供永久性的制度安排和基金保障,使其在第十二次缔约方大会得以参与全球气候谈判过程。



In accordance with scientific knowledge, we need minimum binding emissions reduction targets of 30% by 2020 and 80% by 2050 for “developed” countries.  Moreover, agreement must be reached before 2008 and should include additional support to decarbonize “developing” countries, funded in part by penalties for non-compliance of “developed” countries.


根据已有的科学知识,我们要求发达国家至少应遵守到2020减少30%,2050年减少80%的减排目标。此外,必须在2008年前达成协议,协议应该包括为发展中国家的碳减排提供附加支持,部分资金应该来自于对发达国家的违约惩罚。



Flexible mechanisms must supplement, not substitute, domestic emissions reductions; this requires that the vast majority of reductions be achieved at home.  The additionality, monitoring and transparency of project-based flexible mechanisms cannot be compromised.  The process must include a participatory role for local communities.


灵活机制应该是国内减排的补充措施,而不是替代方案,这要求主要的减排任务仍需要在国内实现。同时,不应放弃对基于项目的灵活机制的补充要求、监督和透明度要求。在项目执行的过程中必须有地方社区的参与。



We ask governments for a just transition to low-impact renewable energy and insist on the removal of fossil fuel subsidies.  Human rights and social justice must be included in the transition from fossil fuel dependence.  Projects involving nuclear energy, large-scale hydro-electric power and waste incineration do not contribute to sustainability.  Carbon sequestration is a last resort to mitigating climate change.


我们要求政府转向环境影响较小的可再生能源,并坚决取消对矿物能源的补贴。人类权利和社会公正必须在矿物能源置换中给予考虑。核能、大规模水电和废物焚烧的项目无助于可持续发展。碳吸收是减缓气候变化的最后手段。



Adaptation options need to be addressed in parallel with mitigation.  More resources are urgently needed for the most vulnerable countries with the lowest adaptive capacity, especially in the form of funding for local adaptation.  Plans for both human adaptation and appropriate ecological management techniques must be incorporated into national policies.


适应性选择应与减排努力并行。适应性能力最低的最脆弱的国家急需更多的资源,特别是需要资金用以支持其改进适应性。人类适应性选择和适宜的生态管理技术的相关计划必须整合到国家政策当中去。



Food and water security must be guaranteed in order to avoid conflict under a changing climate.  Environmentally displaced peoples must be provided assistance. 


保障食品和水安全,以避免因气候变化导致的冲突。必须为环境难民提供援助。 


We urge governments to refine their urban planning policies, promote green architecture, incorporate public transportation systems, and encourage non-motorized modes of transport.


我们敦促政府更新城市规划政策、促进绿色建筑、整合公共交通系统,并鼓励非机动车交通方式。



Vehicle fuel efficiency standards must be enhanced.  Aviation and maritime emissions must be reduced through mandatory targets.


必须提高交通能源效率的标准。应该通过强制目标减少航空和海运排放。



We insist that governments incorporate an ambitious multi-disciplinary approach to sustainable development in our education systems, including a curriculum on climate change.


我们希望政府将基于多学科方法的可持续发展教育整合到教育系统当中,包括气候变化方面的课程。



Our vision


我们的愿景



We respect both past and future generations and recognize that humanity is part of the Earth’s ecosystems.  Human and ecological wellbeing must supersede economic concerns if only because economies depend on ecosystems.  Technology alone is not a solution; we do not want the continuation of unsustainable habits.  We value community, culture and life above superficial consumption.


我们尊重过去和未来的世代,并且认识到人类是地球生态系统的一部分。人类和生态系统的福址应该超越纯粹经济的考虑,因为经济依赖生态系统。技术本身并不是解决之道,我们不能继续那些不可持续的习惯。我们重视社区、文化和生命的价值,超越表面的消费。



Communities, each with a unique insight into their own situation, are the best producers of solutions for mitigation and adaptation.  We support business initiatives that are striving to help us achieve our vision.  Governments’ responsibilities are to the people, before corporations.  


每一个社区都有对自己生存环境的洞见,并且是减缓和适应性措施的最佳创造者。我们支持企业主动帮助我们实现愿景。政府的责任是为人民服务,且应优先于企业。



Climate change solutions must guarantee the right to a healthy environment and the environment’s right to health, as well as ensure equity amongst present and all future generations.  Education should promote sustainability within a diversity of cultures.  The low-carbon economy is not a low-job economy.


解决气候变化必须保证人类健康环境的权利和环境本身健康的权利,也应确保对当代和后代的公平性。教育应该促进文化多样性下的可持续性。低碳经济不是一个低就业的经济。



We envision a world where all members of society have not only the right but the means to influence the world around them and where sustainability, equity, and justice are uncompromised values.


我们期望社会所有成员不仅有权利而且有办法去影响他们周围的世界,一个可持续的、公平的和公正的世界。



As youth, we have the right to shape the world we live in.  We are already taking steps in our own lives and communities to realize our vision and we demand that our leaders do the same. 


作为青年,我们拥有改善我们所居住的世界的权利。我们已经在我们自己的生活和社区设法实现我们的愿景,我们要求我们的领袖们也这样做。



Climate change is an opportunity to unite.  The age of competition is of the past; the age of cooperation is dawning!


竞争的时代成为过去,合作的时代已经到来!团结起来,应对气候变化。



(何钢 译,  贾峰、张世秋 审)

Tuesday, November 8, 2005

Deflating the Ecological Bubble

Denis Hayes


For several hundred years, the world has experienced occasional periods when economic valuation has borne no resemblance to reality.  These periods – popularly referred to as “bubbles” – are always temporary and they usually end badly.



The South Sea Bubble



One early example of this was the so-called South Seas Bubble, which led to the collapse of the London stock market in 1720. The South Seas Company was a politically well-connected enterprise that won great favor by outbidding the Bank of England to assume half the entire national debt of England in return for its kited stock.  It also bribed two of the king’s mistresses and obtained a royal charter.



It was a period of speculative fever, stoked by the promise of riches from the far corners of the earth and an end to the wars with Spain.  At the end of January, 1720, the South Sea Company’s stock was selling for 120 pounds a share.  By the end of March, the price was 380 pounds.  By the end of May, it was at 520. 


In June it soared briefly to over 1,000 pounds per share. But there was no conceivable rationale for this sort of skyrocketing price, and the end of the gigantic enterprise came quickly.  By September, the value of a share of stock had fallen to 135 pounds.  The number British bankruptcies quickly reached an all-time high.



Tulipmania



Perhaps the most famous bubble of all time was the 16th century Dutch tulip mania.  Tulips were introduced to Holland in 1593, and they immediately became a sensation among the rich and famous.  New hybrids were bred. Soon huge sums, and even houses and businesses, were being traded for the rarest bulbs.  A futures market developed for bulbs that did not yet exist.  Then, in 1637, a gathering of tulip merchants failed to get the usual inflated prices for the next wave of bulbs.  Word spread across the land like lightening, and the market crashed overnight.  Thousands of Dutch merchants, including the nation’s leading power brokers, were financially ruined.  Again, there had a total disconnect between prices and any rational basis of value. 



Bubbles are not, of course, limited to ancient history.  They happen whenever people close their eyes to reality.   


 

The American Bubble


In the United States, we are still trying to shake off the ill-effects of our own recent experiences with a high technology and telecommunications bubble.



The term “bubble” has a frivolous connotation that belies the importance of the problem.  About $7 trillion in stock market valuation simply vanished in the United States, and much of the rest of the world was sucked into our downdraft.



$7 trillion equals about $70,000 for every American household!  


This bubble was partly caused by the irrational exuberance of a segment of the population that had acquired astonishing wealth during a prolonged bull market. They decided that profits and losses were a vestigial remnant of the “old economy,” and turned to a series of much fluffier ways to measure value.



 


The Ecological Bubble



My thesis today is that the world is now facing a far more serious bubble.   


Throughout the global economy, prices don’t reflect ecological reality.  We’ve been liquidating our natural capital and not reflecting this on our books.  Indeed, when we consume a natural resource, we account for this loss with an entry in the “income” column. 



The accounting behind the global ecological bubble is audaciously fraudulent – it is an open lie tacitly agreed to by everyone because confronting the truth would be too painful. 



As a consequence, we’ve been breaking a lot of little laws for a long time.  Now the larger laws – Nature’s Laws – are catching up with us.


 



Externalities



Environmental externalities were of mostly academic interest a half-century ago, when distinguished economists like Ezra Mishan and Joan Robinson began writing about the topic.  


However, they have now outgrown the “academic” box.  


Today, costs that are universally treated as “external” to economic decision-making are often larger and more important than the “internal” factors that actually drive the decisions. 


Like other recent massive accounting frauds that move expenses off the balance sheets, this economic fiction contributes to a false sense of well-being. 


Ignoring environmental externalities, the global economy appears to have been an incredible triumph. Output grew from $6 trillion in 1950 to $43 trillion in 2000. 


However, the so-called “external” environmental costs of various activities have grown to awesome proportions.  Yet they are literally reflected nowhere in price signals that steer the world economy.  This is a classic economic bubble. 



You all know the litany: 



  • Climate change threatens to turn the world’s breadbaskets into dust bowl and inundate valuable  real estate such as Florida, the Netherlands, the rice-producing river deltas of East Asia.  The rapidly-expanding Gobi Desert is now an easy day trip from Beijing.   

  • The best biological surveys suggest that the world is experiencing an epidemic of extinction unmatched in history, except when the planet has been struck by a giant asteroid.

  • Permanent top soil loss is impoverishing the world’s long-term agricultural prospects.

  • Childhood asthma rates are soaring around the planet. 

  • Virtually every aquifer on earth is being depleted – some at alarming rates – with frightening long-term implications for world agriculture.   

  • The world’s rain forests are under assault, and many are disappearing permanently. 

  • Hormone-mimicking substances are accumulating in every food chain in the world, even the most remote, with unknown consequences for humans and other animals.   

  • The examples are legion.

China, despite its very large population, until recently had only a modest impact on the world’s consumption of resources and its generation of pollution.  With your stunning economic progress, that is no longer the case.  Last year, China consumed half of the world's cement production last year, one-third of its steel, nearly one-fourth of its copper, and one-fifth of its aluminum.  China is now the world's second-largest importer of oil, after the U.S. 


China is now becoming a sufficiently large factor in the global ecological bubble that it needs to pay serious attention to strategies to minimize its impact.



Refusing to include ecological costs in national income accounts and in corporate financial statements is every bit as misleading—and even more guaranteed to produce a catastrophe—as surreptitiously shifting debts to offshore corporations in the Cayman Islands. 


Costs are costs, and sooner or later the piper has to be paid.  


The ecological bubble is of a different order of magnitude than the American technology bubble of the 1990s.  


It is almost incomprehensibly larger. 


Biological systems can operate for a while beyond their long-term carrying capacity, but eventually ecological realities always assert themselves.  


Ecological overshoots—whether of elk or prairie dogs or aphids or yeast—are analogous to bubble economies. Everything seems to be going swimmingly until suddenly, like cartoon characters, they find that they have run over the edge of the cliff.  


And no matter how fast they churn their legs, they can’t avoid a long drop. 


As with bubble economies, the greater the violation of the boundary conditions, the sharper and deeper the eventual collapse.  


If there were any single lesson from the science of ecology that I would like to see understood by the next generation of leaders it is the huge margin by which Homo sapiens is currently overshooting the long-term carrying capacity of the planet. 


A 2002 study by Mathis Wackernagel, published in the Proceedings of the American National Academy of Sciences, concluded that humans, with current populations and current levels of affluence, began consuming beyond the natural regenerating capacity of the earth around 1980, and that we are now exceeding that capacity by about 20 percent.  (And, of course, for the 1.2 billion people around the planet currently living on less than $1 per day, current conditions are not very attractive.)



David Pimental has calculated that, if everyone on earth were to have the level of affluence of the average Swede or Japanese, the human carrying capacity of the planet is about two billion people.  The actual population today is, of course, three times as high, and still growing about 70 million net new humans per year.   


The poorest parts of the planet are showing signs of collapse already. UN demographers recently announced that the long-term, world-wide rise in life expectancy has dramatically reversed itself in sub-Saharan Africa.  Largely driven by the HIV epidemic, but also by widespread draught and resource wars, life expectancy in this region has plummeted from 60 years to just 47 years.  (Incidentally, within the next decade, AIDS will likely have claimed more lives than all the wars of the twentieth century, combined.)



This brings us to another glaring bubble: food.   


Ever since Malthus first issued his dire predictions, farmers have been surprising us, and the population has continued to grow.  But given basic boundary conditions of photosynthetic efficiency, quantities of arable land, and available water, it is hard not to conclude that Malthus is on the verge of vindication.  


For example, in 2002, people and domesticated animals consumed 100 million more tons of grain than were produced—a five percent shortfall.  That was the third successive year of grain deficits—reducing global stockpiles to record lows.  If this trend continues, global grain stockpiles will essentially disappear by the end of this year.   


Moreover, this is with 840 million people living on grossly inadequate diets;  with former major food growing regions in Asia and Africa lost to erosion and desertification;  with every major water table on earth plummeting faster than its recharge rate.  Optimists say that farmers will find ways to fill the 100 million ton shortfall, plus enough to provide decent diets for the nearly one billion who are malnourished, plus enough to feed the 70 million net new people who will be added this year, plus rebuild our reserve stockpiles to reasonable levels—but no one seems to have a convincing strategy toward this end.   


China, with an economy that, measured conventionally, is booming at an annual growth rate of 7 or 8 percent, is arguably Asia’s brightest hope.   


China and the United States have roughly the same amount of land available for grazing.  American environmentalists make a compelling case that we have been overgrazing fragile federal lands.  But consider China.  America has 97 million cattle;  China has 106 million.  Pretty close to parity.  America has 8 million sheep and goats;  China has 298 million—mostly concentrated in the western and northern provinces, which they are swiftly turning into the world’s largest Dust Bowl.  But unlike the much smaller US Dust Bowl in the 1930s, which displaced 2.5 million Okies to California (as described movingly in John Steinbeck’s Grapes of Wrath) China’s dust bowl threatens to displace scores of millions.  And there is no Chinese equivalent of California to which they can move. 



Ten thousand years ago, Homo sapiens and his draft animals and livestock constituted less than half  of one percent of the mass of all vertebrates.  Today, we and our livestock constitute more than 98 percent of the mass of all vertebrates. 



The World Conservation Union reports that one-eighth of all bird species are endangered; one-quarter of all species of mammals are endangered; and one-third of all fish species are endangered.



There are far more tigers today inside zoos than there are outside of zoos. 



We have two options: we can begin working very hard to build a global economy, designed along ecological principles to operate within the planet’s carrying capacity.  Or we can carry on with business as usual and race off the cliff of ecological collapse. 


Looking back on these post-Millennium years 200 years from now, how humankind – and in particular the United States and China – address these issues will almost certainly be the most important measure by which we are judged.  


The first big test, I believe, will be climate change. 


 


A Climate of Change 


Scientific support for the proposition that humans are changing the world’s climate now approximates the level of support enjoyed by the proposition that the Earth revolves around the sun, and not vice versa. 


In the United States, the smartest business leaders are way ahead of the politicians on this.



DuPont has committed to keep its total energy use flat through the next ten years, to obtain ten percent of its total energy in 2010 from renewable sources, and to produce 65 percent less greenhouse gases in 2010 than it produced in 1990. The Kyoto Treaty (which apparently will finally go into effect with Russian ratification in the near future) seeks a 7 percent reduction of greenhouse gases by 2010 from the United States.  DuPont is aiming for 65 percent. 



Promises are cheap.  But DuPont has already held its energy use flat since 1991, and it has already reduced its greenhouse gas emissions by 45 percent since 1990.



BP is now the world’s third largest manufacturer of solar cells—behind two Japanese companies—and an ardent supporter of the Kyoto Protocols on climate change. Whether or not Kyoto is ratified, BP has committed to meeting Kyoto’s greenhouse gas reduction goals for the company. 


Shell is forecasting that renewable energy could meet half of all global energy demand by 2050—a market opportunity of tens of trillions of dollars.



Johnson & Johnson has also pledged to implement Kyoto whether the U.S. Senate ratifies the treaty or not. As a company, it will reduce greenhouse gas emissions seven percent below 1990 levels by 2010. This pledge covers 150 facilities in 50 countries.



IBM, which has already reduced its CO2 emissions by 20 percent from 1990 levels, has stunningly committed to further reductions of four percent a year into the indefinite future. The pledge covers its 30 manufacturing facilities in 14 countries.



Despite these exceptions, my nation is not meeting its global responsibilities, and the American environmental movement has no higher priority than shifting the nation to a super-efficient use of renewable energy sources that produce no greenhouse gas emissions.   


China is exempt for the time being from the Kyoto Treaty, but that exemption will be brief.  It is clearly in your interest to explicitly design your buildings, industry, and transportation systems from the ground up to minimize CO2 emissions.   It is much easier, and vastly cheaper, to build it right from the start than to build an inefficient system and then try to improve it later. 



 


Conclusion.



The whole world is quietly crying out for creative solutions to environmental problems.  Whenever nations or even cities do something noteworthy in this era of instant communications, others are inspired.   


(Indeed, my personal experience in seeing the concept of Earth Day spread to several hundred million people annually in 184 nations leads me to have enduring faith in the power of a good idea.) 


Curitibo – a medium-sized city in Brazil – is internationally recognized for its innovative work in public transit.  A constant stream of visitors from places around the world comes to study it.  Similarly, Vancouver, British Columbia, and Portland, Oregon, are global models of intelligent land use.   


Iceland has set itself up as a test ground for a hydrogen-powered society.  It has arranged with energy companies and automobile automobiles to try out their cleverest new ideas in this unlikely sounding national laboratory – and documentary film makers from around the world are recording their triumphs and failures. 


Similarly, little Denmark is the world’s test bed for wide-spread application of wind power. 



In each case, the government decided it wanted to be a global leader in a particular field and then it went to bat to recruit the talent and dollars to make it happen.  It was not always easy.   


A great many experiments remain to be run.  It would be impossible to find a better laboratory for many of them than China.  With your excellent universities, dynamic businesses, and abundance of scientists and engineers, your actions are hugely influential.  Accordingly, if you make the wrong choices, you will likely have impacts far beyond your borders. 


Most nations – most notably my own – strive vigorously to keep their economies divorced from ecological realities. To the extent that they succeed, they are sowing the seeds of their own eventual collapse.  It will be bad for them – and in the aggregate, it will be catastrophic for the world.   


If China does not blindly follow all western economic models, but rather builds an alternative, sustainable model, you are perfectly positioned to play a key role in leading mankind away from the brink and toward a sustainable future.  The whole planet will be in your debt. 


__________________________


Denis Hayes is President of the Bullitt Foundation, an environmental philanthropy located in Seattle. The opinions expressed in this talk do not necessarily represent the views of the Bullitt Foundation or its board.


 


Monday, November 7, 2005

Ten demands in the sustainable development of China

Comment by Cai Yunlong (My mentor) and He Gang


Jiang Zemin, former president of the People's Republic of China, published a leading article in Science titled Science in China, in which he pointed out that ′An historic, unprecedented transition is unfolding in present-day China. We face pressing imperatives--the restructuring of the national economy, the rational use of our resources, the protection of our environment, the coordinated economic development of different regions, the alleviation of poverty, and the raising of living and ethical and cultural standards across our diverse country--all of which produce an urgent need for the development of science and technology.′


Vast territory, complicated and various landscape, large population, great regional differences in socio-economic development, and a period of high developing speed and great social economic transition with severe contradictions between human and natural, urban and rural areas, regional differentiation, economic growth and social fair, and the impact of globalization, all these great national conditions and their trends need coming up to understanding and be solved from a geographical perspective. Go deep into studying the spatial-temporal differentiation law of Chinese geography, releasing the evolutive mechanism of the human-nature relation of China, predicting the scene of Chinese geography in a certain future period scientifically, are of extremely important scientific value to the establishment of countermeasure to the sustainable development of China under the global change tendency.


Seen from the international background, global change, including the global environmental change (especially the climate change), global economic integration, global geopolitics structure change, are the current concerns and focuses of the scientific circle and decision circle. Geographers studies the global change from regional comprehensive impact and response, and ′Global change, regional challenge′, ′Thinking globally, acting locally′ have been becoming the important perspectives of geography.


Global change studies should work in policy-making, and what the policymakers concern most is the question correlating with specific regions and places. Therefore, on one hand, special attention should be paid to the comprehensive regional research, in order to developing new perspectives, to clarifying the scientific questions at the regional and local scales, to concentrating on the critical districts, the fragile districts and the focus districts, and to facing the synthesis of multi-disciplinary and multiple spatial scales.


On the other hand, comprehensive geographical studies should be launched at the unique problems in unique areas for their geographical advantage, where unique innovative achievement can be potentially drawn. Qinghai-Tibet Plateau, loess plateau, southwest Karst area, the Yellow River Basin, the Northwest district, the Yangtze River basin, etc., usually considered as unique areas of China, are not only the important areas of China development, but also the concern areas of the international academia. Recently, a provident research, sponsored by the Department of Development Planning of the Ministry of Science and Technology of China, and organized by Center for promoting and developing Science and Technology of China shows that: In the following ten years, China's socio-economic development will produce ten major demands to science and technology (2004).


1 Industrial optimization and promotion


Industrial optimization and promotion problems in the primary, secondary and tertiary industries of China, mainly in manufacture, will be the theme in the following ten years. Industrial Geography studies the factors, the conditions, and the position characteristics of Industrial Park, and researches the industrial development conditions and regional development mechanism from position decision, spatial strategy and spatial structure of enterprises, industrial policy and regional policy of government, which plays an important role in the industrial optimization and promotion of different regions of China, position chosen, spatial connection and promote regional and industrial competitiveness, etc. In addition, with further ongoing of the market economy and improvement of the living standards, etc., the tertiary industry has been becoming more and more important. Marketing, consumer behavior, logistics, symbolic environment, etc. have become the focuses of geographical study. Enterprises are a main pillar of the market economy edifice, so it has been an important research object of American-European economic geography all the time, and formed a branch called enterprise geography studies position and strategy of enterprises. Its present important topics include clusters, spatial-temporal management, spatial form of enterprises and spatial organization of the trans-corporations, etc.


2 Agriculture development


Chinese agriculture has turn to green, safe, standardized and high-efficient, and the relevant technological demands include: informationize agriculture, green agriculture, secure agriculture, standardized technology, agricultural product process technology and the technological innovations in traditional agriculture such as famous, special, rare, and excellent products. Restricted by the synthesis influence of the nature, technology and economic conditions, agricultural production has strong regional character. Agricultural geography studies the rule of regional differentiation, regional differences characteristics and their form, formative conditions and developmental and transformative law in agricultural production, in order to carrying out the principle of taking measures to local conditions to real agricultural production, which can make contribution to the transition and upgrade of China different regional agriculture in future.


3 High-tech industry development


The influences that high-speed technological progress brings to socio-economic spatial process demands urgently to be known and explained, also a question geographer must and can work with. At present, the high and new technology industry of China, mainly produces the peripheral equipment and assembly etc., situates at the downstream stage of that of the world, with the research and development of key technology and key parts are nearly all grasped by the developed countries. Digital division in IT expands, so it is extremely urgent to improve the competitive capacity of high-tech industry of China in order to raising its national competitive capacity. Geographical information science will play an important role in promoting the industrial technical level. Economic geography studies the aggregation of high and new technology under globalization and information revolution, and the forming and development of learning and innovative areas, which can help China to decide the development strategy and regional arrangement of high and new technology industry.


 4 Press of international trade


After its entry to WTO, China faces a more open world. Even the labor-intensive products, comparative advantage of China, will be challenged more by other developing countries. What’s even more critical is the export of China always limited by non-tariff trade barriers set by developed country, such as the technological barrier, green barrier, etc. Keeping its comparative advantage or evading the non-tariff trade barriers, need to guarantee the comparative advantage in international trade through technological progress. Commercial geography, studies the commodity productions′ regional distribution, international market condition, international trade flow trends, international trade relations, geo-economic links, national competitiveness, country differences of non-tariff trade barriers, etc. Surely it will contribute to keeping the comparative advantage of China in the international trade and evading the non-tariff trade barriers.


5 Urbanization


As an inexorable trend goes with its economic development, China has been entering a period of high-speed urbanization followed with a series of sharp contradictions urgently call for scientific realization and solution. Urban geography studies the form and development of cities, the spatial structure and overall arrangement, the course of population gathering and urbanization, the designated function of city, the size and type of cities, urban system, urban planning and total layout of cities, distribution of cities, relation between construction and environmental protection, etc. Regional development research that geographers specialized in is crucial to urbanization studies, because of the affinity between urban research and regional study with the city core of the region and the region background of the city. Spring up in 1980s, concepts such as new regionalism, regional innovative system, industry district, learning region, knowledge overflow, etc. provide not only policy recommendations for China's urbanization but also scientific basis for planning and construction of all kinds of cities. The main demands for technology in urbanization include: information technology in city management; environmental protection technology, especially the technology of garbage disposal in urban environment and sanitation protection; technology in urban infrastructure construction. Geographical information sciences, involving geographical information system, digital city and virtual city, etc., can do something in meeting the demands above-mentioned.


6 Population health


Food security, public health, prevention and cure of some serious diseases and the aging trend, have already been the prominent problems in China's social development process which call for setting up and strengthening corresponding warning system and public health system, enhancing research on the medical science and technology of health care, developing new craft for food processing and new technology for measuring control, concerning technology demands for an aging society and the modernization of traditional Chinese medicine. Medical and health geography studies the geographical distribution and its change of human disease and health status, the emergence, prevalence of diseases and the health status change and the relation with geographical environment, medical health institution and region of facilities dispose and regional development, geographical information system of medical treatment and disease monitoring, pre-warning, etc.; population geography studies the size and quality of population, population growth, spatial-temporal differences of the population composition and its relation with geographical environment, etc. Medical geography and population geography will play an important role to meet the health demands of the population.


7 Integrated utilization of resources and social sustainable development


Developing water-saving technology and equipment with low cost, improving sewage disposal in order to alleviate contradiction between the supply and demand of water resources; improving the comprehensive recycled utilization ratio of mineral resources; reducing the environmental pollution in the exploitation of mineral products, etc. Geography studies the regional combined characteristics of quantity and quality, spatial structure and distributing law, rational distribution, sustainable utilization, maintaining, carrying capacity, and potentiality assessment of natural resources, seeking new resources, energy, predict future trend. It concerns not only natural resources′ action in economic development and development and utilization planning, but also the function of natural resources in the respect of ecological service, society fairness, etc. The important research fields of geography also refers to the relation between economy and environment, including the recycle economy, green manufacture, environmental management and control, political ecology; some important social problems, such as labor, gender (women), community, race, labor union, etc. Geographical studies above-mentioned can offer scientific basis to comprehensive utilization of resources and to social sustainable development decision.


8 Energy structure optimization


Include developing and popularizing the power-saving technology and industry, adjusting the energy structure, improving the energy efficiency, optimizing the structure of energy, developing clean energy technology, reducing pollution, and optimizing the structure of energy industry at the same time. Studying issues such as the regional combined characteristics of the quantity and quality of energy, spatial structure and distribution law, reasonable distribution of energy among regions, sustainable utilization of energy, environmental impact of energy utilization, etc., on the basis of regional disposing, geography can make contribution to energy structure adjustment, energy structure and energy industry structure optimization, and energy utilization ratio improvement, etc.


9 Environment improving refers to geographical demands


Key measures to improving the environment of China in the future include increasing the vegetation coverage rate, preventing and curing land degradation, ecological construction and controlling pollution. Physical geography and environmental geography studies the interaction, dynamic evolution and regional differentiation of elements of natural geographical environment or earth ecosystem, land use and land cover change, prevention and cure of land degradation, biodiversity protection, distribution of pollutant and their environmental impact, prevention of environmental calamity etc., which are the essential basic research and application study to the environment improving.


10 National security to geographical demands


National security is a system composed by subsystems as political security, military security, economic security, scientific and technological security, ecological security and social security, etc. Geographical studies, involves international geopolitics, military geography, regional economy, spatial pattern and diffusion of scientific and technical innovation, structure and function of ecosystem, and spatial arrangement of social affairs, will play a special role in national security system.


 

Sunday, November 6, 2005

Brief introdution of myself, hehe

I'm He Gang comes form the great ancient mysterious China, a rising big responsible country. I have been studying in Peking University where I considers it as an Eden of science and humanity, and paradise for learning.


My background can be Geography with Economy, Ecology and Environment scope, and had attended two major projects on LUCC and its impacts on regional sustainable development, all related to climate change.


I was ex-president of the graduate students union of College of Environmental Sciences, Peking University. I also works for CEEC (Center for Environmental Education & Communication of State Environmental Protection Administration of China) and severs as an assistant project manager and special reporter here.


I loves nature, so I takes all opportunities to travel all the country around and always proud of that, and this time to Montreal. Reading, movies, poems and music, they makes my life more beautiful with sunshine, and also help me kill some hard times. I loves swimming, because I always thinks it's magic to freely extend your body in water with a sense of direction.


Do responsible work, and enjoy life, that’s my motto. The greatest man serves the public, no matter with science, ideal or even small action. So I'm so excited that I can meet all your guys who concerns the earth and take action to create a sustainable world. See you at the Summit.

 

Plan for World's Largest Wind Farm Generates Controversy



 


The world's largest onshore wind farm, planned for a Scottish island, could provide power to more than a million people. But the project has been stirring a storm of controversy.


 


A British energy company is planning to build the world's largest onshore wind farm on the Isle of Lewis in Scotland's remote and windswept Western Isles.


The massive project would feature more than 200 wind turbines, each 400 feet (120 meters) tall with a central rotor longer than a jumbo jet.


Lewis Wind Power, the company behind the proposal, aims to use the power harnessed by the turbines to generate enough electricity to supply 1.1 million people.


Yet the wind farm has generated a storm of controversy among wildlife groups and many islanders, who strongly oppose the plan.


The Royal Society for the Protection of Birds (RSPB), Europe's largest wildlife nonprofit, says the wind farm could wreak havoc on an environmentally sensitive area.


The farm's 40-story turbines would spread across a large area of peatland, protected under European law as a habitat for a range of birds, including eagles, falcons, divers (or loons), and important wader species.


Opponents of the plan say the wind farm could damage this habitat and also kill hundreds of birds that fly into the turbines' spinning blades.


"This is about the most damaging place you could put a large wind farm," said RSPB Scotland's planning and development manager Anne McCall.


Last summer the Western Isles Council, the regional authority, recommended in favor of building the wind farm. The decision now rests with the Scottish government, which is expected to make a decision next year.


 


Cash Boost


Wind power is the world's fastest-growing source of renewable energy. The U.K. expects it to contribute 15 percent or more of the nation's electricity needs by 2020.


Scotland's own wind energy goals are greater still—the country aims to get 40 percent of its energy from renewable sources by 2020.


Lewis Wind Power predicts that the development would not only help Scotland reach its goal but it would also generate 10 to 14 million U.S. dollars (6 to 8 million pounds sterling) of annual income for the Western Isles.


"The Western Isles has been identified as an area facing particular challenges," said John Price, Lewis Wind Power's development director.


"The population is declining, unemployment is high, activity rates are low, and gross domestic product per head is well below the national average. The development has been designed to be large enough to provide real economic benefits to the Western Isles."


But the scale and location of the wind farm would cause serious harm to the region's bird life, according to RSPB Scotland's McCall.


One concern, she says, is that large birds like golden eagles risk being chopped up in the massive turbine rotors, which measure 320 feet (100 meters) across.


"Eagles hunt over large areas, and they focus quite closely on what they're trying to hunt rather than on turning blades," McCall said.


"Collision risk is also a big problem for large birds like divers, geese, and swans, which have dedicated flight lines.


"The idea of birds flying into objects may sound a bit odd, but they'll be flying in all types of weather conditions—fog, cloud, mist, rain, and wind."


Models for collision risk predict that birds will avoid the turbines 95 percent of the time.


"Even then you're looking at losing 50 golden eagles over the 25-year lifetime of this development," McCall said.


Collision-risk estimates suggest a similar death toll for merlin, a species of falcon, and the loss of between 200 and 250 red-throated divers.


An even bigger threat from the proposed wind farm is potential damage to the peatland breeding habitat of wading birds like greenshank, dunlin, and golden plover, McCall said.


"These birds don't like tall structures or moving blades, so they will move away," she added.


Lewis Wind Power says only one percent of the habitat will be disturbed by development, but an RSBP-commissioned study suggested the potential impact could be up to 30 times greater.


Tom Dargie, ecologist for Lewis Wind Power, says he's "deeply concerned" by RSPB's response to the developer's environmental survey.


"Senior, very experienced peatland ecologists" at Scottish Natural Heritage, Scotland's independent government conservation agency, agree with Lewis Wind Power's estimates of the farm's environmental impacts, he said.


But Lewis Wind Power concedes that there will be some cost to local wildlife. For example, the developer projects that four percent of the British population of dunlin could be affected.


 


Global Warming


Lewis Wind Power's Price counters critics by saying the project will contribute significantly to the fight against global warming, "which the RSPB acknowledges as the greatest threat to birds and bird habitats."


"We acknowledge there are concerns about the impacts of the proposal on birds and on the landscape of north Lewis, and [we] have worked hard—including commissioning the largest bird survey ever undertaken in Europe—in developing the design to minimize these impacts," he said.


Price adds that the wind farm would benefit the Western Isles economically, creating more than 300 jobs, plus another 350 jobs over 25 years.


While the regional council has backed the project, there is strong opposition from local residents.


About 3,200 Lewis residents have issued formal objections to the proposed wind farm.


Former Western Isles Member of Parliament Calum MacDonald, who was voted out of office during national elections last May, blamed his defeat on his support for the plan.


His defeat, he said, "was a protest vote against [the wind farm]."


Wind-farm opponents say any economic benefits to the Western Isles would be outweighed by lost tourism revenue.


Lewis resident Justin Busbridge is one such critic.


"It is often said, You can't eat a view, but tourism operators and thousands of islanders earn their living from just these views," he commented. "If they are destroyed, so is their livelihood."


Busbridge, who runs an adventure business, says tourism represents 20 percent of employment in the Western Isles, providing 2,300 jobs.


A survey by VisitScotland, the national tourist board, found that 50 percent of visitors felt that wind turbines would spoil the scenery, while 25 percent said they would be "less likely" to return to an area with turbines.


The RSPB Scotland says it supports wind farms in principle and other forms of renewable energy, and objects to only around 10 percent of proposed wind power schemes it's consulted on.


"We must be very careful to make sure that renewable energy developments themselves do not pose a threat to important bird and biodiversity resources that we are trying to protect," RSPB Scotland's McCall said.

Two characteristics of Nature - He Gang's comments

 

 

It's interesting to start the scientific discussion with a political speech, is it suggest that the focus of the climate change issue has trun to be a international political issue rather than a scientific debate.  I do agree with Haro and Amber that "we have reached the point where we should no longer debate the fact that climate change is occuring and that humans are accerlarating the process", you can find facts and figures in the three (maybe soon four) assessment reports for IPCC.

 

And my point is to accept the change but admit the uncertainty (please notice it was not risk), because nothing simple about nature, including climate change. "We have to remember that nature does not behave in a simple, linear fashion. Our natural systems have, over millions of years, developed complex systems of checks and balances. Humanity is now powerful enough to meddle with those systems and the results are unpredictable. That's something to keep in mind when we consider climate change, genetically modified food and other emerging scientific issues. We have to be cautious. And we can't assume we know how things will turn out, because with nature, the answer is rarely simple."

 

What Marthinus said "untested theories" always be black-box just like equation, models, etc. in scientific view, but nature never works as models scientists usually take, so my second point is we should keep in mind that the nature is easy to destroy but hard to repair. I think this characteristic of nature help us to understand that we can not repeat the road that developed countries once walk. I always take the body as a metaphor that you can not wait to keep fit when you get serious ill,  and we can not wait to take action when it is too late for adaptation and change. Otherwise, disasters probably to happen the day after tormorrow may truly come tomorrow.

 

As with uncertainty, as with easy and hard character, climate change is so big an issue that we should take joint action. We always consider that think global, act local, that's ture but not enough because local action make sense and joint action make difference, that's why I say let's together to make a difference.

 

Saturday, November 5, 2005

If the world were a Village of 100 People


To all my friends and loved ones
Love from me
Useful Perspective

If the world were a Village of 100 People

 

David J.Smith   Shelath Armstrory

 

If we could shrink the earth’s population to a village of precisely 100 people, with all the exsting human ratios remaining the same, it would look something like the following:

There would be:
57 Asians
21 Europeans
10 from the Western Hemisphere, both north and south
8 Africans

52 would be female
48 would be male

70 would be non-while
30 would be white

70 would be non-christian
30 would be Christian

89 would be heterosexual
11 would be homosexual

6 people would possess 59% of the entire world’s wealth
and all 6 would be from the United States.

80 would live in substandard housing
70 would be unable to read
50 would suffer from malnutrition
1 would be near death; 1 would be near birth

1(yes, only 1) would have a college education
1 would own a computer

When one considers our world from such a compressed perspective, the need for acceptance, understanding and education becomes glaringly apparent.

The following is also something to ponder……

If you woke pup this morning with more health than illness……you are more blessed than the illion who will not survive this week.

If you have never experienced the danger of battle, the loneliness of imprisonment, the agony of torture, or the pangs of starvation…you are ahead of 500 million people in the world.

If you have food in the refrigerator, clothes on your back, a roof overhead and a place to sleep… you are richer than 75% of this world.

If you have money in the bank, in your wallet, and spare change in dish someplace…you are among the top 8% of the world’s wealth.

If your parents are still alive and still married…you are very rare, even in the United Stated and Canada.

Someone once said: What goes around comes around.

So…
Work live you don’t need the money.
Love like you’ve never been hurt.
Dance like nobody’s watching.
Sing like nobody’s listening.
Live like it’s Heaven on Earth.

Shaping the Future

   

Scientific uncertainty often becomes an excuse to ignore long-term problems, such as climate change. It doesn't have to be so.


By Steven W. Popper, Robert J. Lempert and Steven C. Bankes


 


Overview/Dealing with Uncertainty



  • Science has become an essential part of decision making by governments and businesses, but uncertainty can foil decision-making frameworks such as cost-benefit analysis. People often end up doing nothing or taking steps that worsen the long-term outlook.

  • The authors have developed an alternative framework focused on flexibility--finding, testing and implementing policies that work well no matter what happens.

  • Policies can have built-in mechanisms to change with the circumstances. For climate change, one such mechanism is a "safety valve" to ensure that emissions reductions occur but do not get too expensive.

 


Last year a high-profile panel of experts known as the Copenhagen Consensus ranked the world's most pressing environmental, health and social problems in a prioritized list. Assembled by the Danish Environmental Assessment Institute under its then director, BinLomborg, the panel used cost-benefit analysis to evaluate where a limited amount of money would do the most good. It concluded that the highest priority should go to immediate concerns with relatively well understood cures, such as control of malaria. Long-term challenges such as climate change, where the path forward and even the scope of the threat remain unclear, ranked lower.


 


Usually each of these problems is treated in isolation, as though humanity had the luxury of dealing with its problems one by one. The Copenhagen Consensus used state-of-the-art techniques to try to bring a broader perspective. In so doing, however, it revealed how the state of the art fails to grapple with a simple fact: the future is uncertain. Attempts to predict it have a checkered history--from declarations that humans would never fly, to the doom-and-gloom economic and environmental forecasts of the 1970s, to claims that the "New Economy" would do away with economic ups and downs. Not surprisingly, those who make decisions tend to stay focused on the next fiscal quarter, the next year, the next election. Feeling unsure of their compass, they hug the familiar shore.


 


This understandable response to an uncertain future means, however, that the nation's and the world's long-term threats often get ignored altogether or are even made worse by shortsighted decisions. In everyday life, responsible people look out for the long term despite the needs of the here and now: we do homework, we save for retirement, we take out insurance. The same principles should surely apply to society as a whole. But how can leaders weigh the present against the future? How can they avoid being paralyzed by scientific uncertainty?


 


The approach replicates the way people reason about UNCERTAIN DECISIONS in everyday life.


In well-understood situations, science can reliably predict the implications of alternative policy choices. These predictions, combined with formal methods of decision analysis that use mathematical models and statistical methods to determine optimal courses of action, can specify the trade-offs that society must inevitably make. Corporate executives and elected officials may not always heed this advice, but they do so more often than a cynic might suppose. Analysis has done much to improve the quality of lawmaking, regulation and investment. National economic policy is one example. Concepts introduced by analysts in the 1930s and 1940s--unemployment rate, current-account deficit and gross national product--are now commonplace. For the most part, governments have learned to avoid the radical boom-and-bust cycles that were common in the 19th and early 20th centuries.


 


The trouble now is that the world faces a number of challenges, both long- and short-term, that are far from well understood: how to preserve the environment, ensure the future of Social Security, guard against terrorism and manage the effects of novel technology. These problems are simply too complex and contingent for scientists to make definitive predictions. In the presence of such deep uncertainty, the machinery of prediction and decision making seizes up. Traditional analytical approaches gravitate to the well-understood parts of the challenge and shy away from the rest. Hence, even sophisticated analyses such as the one by the Copenhagen Consensus have trouble assessing the value of near-term steps that might shape our long-term future.


 


The three of us--an economist, a physicist and a computer scientist all working in RAND's Pardee Center--have been fundamentally rethinking the role of analysis. We have constructed rigorous, systematic methods for dealing with deep uncertainty. The basic idea is to liberate ourselves from the need for precise prediction by using the computer to help frame strategies that work well over a very wide range of plausible futures. Rather than seeking to eliminate uncertainty, we highlight it and then find ways to manage it. Already companies such as Volvo have used our techniques to plan corporate strategy.


 


The methods offer a way to break the ideological logjam that too often arises in Washington, D.C. By allowing decision makers to explore a rich variety of what-if scenarios, the new approach reframes the age-old but unanswerable question--What will the long-term future bring?--to one better reflecting our real concern: What actions today will best shape the future to our liking?


 


The Perils of Prediction


Striking a balance between the economy and the environment is one leading example of the difficulty in using science to inform long-term decisions. In his 2002 book The Future of Life, Edward O. Wilson described the debate between economists and environmental scientists [see "The Bottleneck," by Edward O. Wilson; Scientific American, February 2002]. The former group frequently argues that present policies will guide society successfully through the coming century. Technological innovation will reduce pollution and improve energy efficiency, and changes in commodity prices will ensure timely switching from scarce to more plentiful resources. The latter group argues that society's present course will prove unsustainable. By the time the signs of environmental stress become unambiguous, society may have passed the point of easy recovery. Better to apply the brakes now rather than jam them on later when it may be too late.


 


No matter how compelling their arguments, both sides' detailed predictions are surely wrong. Decisions made today will affect the world 50 to 100 years hence, but no one can credibly predict what life will be like then, regardless of the quality of the science. Interested parties view the same incomplete data, apply different values and assumptions, and arrive at different conclusions. The result can be static and acrimonious debate: "Tree hugger"! "Eco-criminal"!


 


The (in)famous report The Limits to Growth from the early 1970s is the perfect example of how the standard tools of analysis often fail to mediate such debates. A group of scientists and opinion leaders called the Club of Rome predicted that the world would soon exhaust its natural resources unless it took immediate action to slow their use. This conclusion flowed from a then state-of-the-art computer model of the dynamics of resource use. The report met with great skepticism. Since the days of Thomas Malthus, impending resource shortages have melted away as new technologies have made production more efficient and provided alternatives to dwindling resources.


 


But the model was not wrong; it was just used incorrectly. Any computer model is, by definition, a simplified mirror of the real world, its predictions vulnerable to some neglected factor. The model developed for The Limits to Growth revealed some important aspects of the challenges faced by society. In presenting the analysis as a forecast, the authors stretched the model beyond its limits and reduced the credibility of their entire research program.


 


Grappling with the Future


Conscious of this failing, analysts have turned to techniques such as scenario planning that involve exploring different possible futures rather than gambling on a single prediction. As an example, in 1995 the Global Scenario Group, convened by the Stockholm Environment Institutes, developed three scenario families. The "Conventional Worlds" family described a future in which technological innovation, driven by markets and lightly steered by government policy, produces economic growth without undermining environmental quality. In the "Barbarization" set of scenarios, the same factors--innovation, markets and policy--prove inadequate to the challenge, leading to social collapse and the spread of violence and misery. The third set, "Great Transitions," portrayed the widespread adoption of eco-friendly social values. The Global Scenario Group argued that the Conventional Worlds scenarios are plausible but not guaranteed; to avoid the risk of Barbarization, society should follow the Great Transitions paths.


 


Although scenario analysis avoids making definite predictions, it has its own shortcomings. It addresses no more than a handful of the many plausible futures, so skeptics can always question the choice of the highlighted few. More fundamentally, scenario families do not translate easily into plans for action. How should decision makers use the scenarios? Should they focus on the most threatening case or the one regarded by experts as most likely? Each approach has faults.


 


The European Union often favors the "precautionary principle"--in essence, basing policy on the most hazardous plausible scenarios. The Kyoto treaty on climate change, for example, requires reductions of greenhouse gas emissions even though their long-term effects are far from understood. On one level, the precautionary principle makes perfect sense. It is better to be safe than sorry. The long-term future will always be cloudy; some dangers may become certain only when it is too late to prevent them. Yet the principle is an imperfect guide. The future presents many potential harms. Should we worry about them all equally? Few choices are risk-free, and the precautionary principle can lead to contradictory conclusions. For instance, both the harm from greenhouse gas emissions and the cost of reducing them are uncertain. To safeguard the environment, we should reduce the emissions now. To safeguard the economy, we should postpone reductions. So what do we do?


 


In contrast, many in the U.S. favor cost-benefit analysis, which balances the benefits of eliminating each potential harm against the costs of doing so. When outcomes are uncertain, cost-benefit analysis weights them with odds. We should be willing to pay up to $500 to eliminate a $1,000 harm whose chance of occurring is 50? Cost-benefit analysis provides unambiguous answers in many instances. Lead in gasoline enters the environment and affects the developing brains of children. Even though scientists do not know precisely how many children are affected, the benefit of removing lead from gasoline far exceeds the cost. But the long-term future rarely offers such clear choices. Often both the costs and benefits are sufficiently unclear that small disagreements over assigning odds can make a huge difference in the recommended policy.


 


Making Policies Robust


Traditional tools such as cost-benefit analysis rely on a "predict then act" paradigm. They require a prediction of the future before they can determine the policy that will work best under the expected circumstances. Because these analyses demand that everyone agree on the models and assumptions, they cannot resolve many of the most crucial debates that our society faces. They force people to select one among many plausible, competing views of the future. Whichever choice emerges is vulnerable to blunders and surprises.


 


Our approach is to look not for optimal strategies but for robust ones. A robust strategy performs well when compared with the alternatives across a wide range of plausible futures. It need not be the optimal strategy in any future; it will, however, yield satisfactory outcomes in both easy-to-envision futures and hard-to-anticipate contingencies.


 


This approach replicates the way people often reason about complicated and uncertain decisions in everyday life. The late Herbert A. Simon, a cognitive scientist and Nobel laureate who pioneered in the 1950s the study of how people make real-world decisions, observed that they seldom optimize. Rather they seek strategies that will work well enough, that include hedges against various potential outcomes and that are adaptive. Tomorrow will bring information unavailable today; therefore, people plan on revising their plans.


 


Incorporating robustness and adaptability into formal decision analysis used to be impossible because of the complexity and vast number of required calculations. Technology has overcome these hurdles. Confronting deep uncertainty requires more than raw computational power, though. The computers have to be used differently. Traditional predict-then-act methods treat the computer as a glorified calculator. Analysts select the model and specify the assumptions; the computer then calculates the optimal strategy implied by these inputs.


 


In contrast, for robust decision making the computer is integral to the reasoning process. It stress-tests candidate strategies, searching for plausible scenarios that could defeat them. Robust decision making interactively combines the complementary abilities of humans and machines. People excel at seeking patterns, drawing inferences and framing new questions. But they can fail to recognize inconvenient facts and can lose track of how long chains of causes relate to effects. The machine ensures that all claims about strategies are consistent with the data and can reveal scenarios that challenge people's cherished assumptions. No strategy is completely immune to uncertainty, but the computer helps decision makers exploit whatever information they do have to make choices that can endure a wide range of trends and surprises.


 


Sustainable Development


To see how this approach works in practice, return to the dilemma of sustainable development. The first step is to figure out what exactly the computer should calculate. Robust decision making requires the machine to generate multiple paths into the future, spanning the full diversity of those that might occur. We may not know the exact future that will transpire, but any strategy that performs well across a sufficiently diverse set of computer-generated scenarios is likely to meet the challenges presented by what actually comes to pass.


 


In our analysis of sustainable development, we used a revised version of the Wonderland model originally created by economist Warren C. Sanderson of Stony Brook University and the International Institute for Applied Systems Analysis in Laxenburg, Austria. The Wonderland simulation incorporates, in a very simple manner, scientific understanding of the dynamics of the global economy, demographics and environment. Growing population and wealth will increase pollution, whereas technological innovation may reduce it. The pollution, in turn, hurts the economy when it taxes the environment beyond its absorptive capacity.


 


Our version of Wonderland is similar to--but with only 41 uncertain parameters, much simpler than--the simulation used for The Limits to Growth. This simplicity can be a virtue: experience demonstrates that additional detail alone does not make predictions more accurate if the model's structure or inputs remain uncertain. For robust planning, models should be used not to predict but to produce a diversity of scenarios, all consistent with the knowledge we do possess.


 


Running models within special "exploratory modeling" software, analysts can test various strategies and see how they perform. The human user suggests a strategy; for each scenario in the ensemble, the computer compares this approach to the optimal strategy (the one that would have been chosen with perfect predictive foresight) according to such measures as income or life expectancy. A systematic process reveals futures in which the proposed strategies could perform poorly. It also highlights ways each strategy could be adjusted to handle those stressful futures better.


 


In the sustainability example, we run the model through the year 2100. Two key uncertainties are the average global economic growth rate during this period and the business-as-usual "decoupling rate" (that is, the reduction in pollution per unit of economic output that would occur in the absence of new environmental policies). The decoupling rate will be positive if existing regulations, productivity increases and the shift to a service economy lessen pollution without lessening growth. It can go negative if growth requires an increase in pollution.


 


Depending on the values of these quantities, different strategies perform differently. One strategy, "Stay the Course," simply continues present policy. It performs well in futures where the decoupling rate exceeds the growth rate, but if the reverse is true, pollution eventually becomes so serious that policymakers are forced to abandon the strategy and try to reverse the damage. During the 20th century, the growth and decoupling rates were nearly equal. If the same proves to be true for the 21st, the world will totter on a knife-edge between success and failure.


 


The more aggressive "Crash Program" pours money into technological development and environmental regulations that speed decoupling beyond its business-as-usual rate. Although this strategy eliminates the risk of catastrophe, it can impose unnecessarily high costs, inhibiting economic growth.


 


Becoming Flexible


Both these strategies involve policies that are fixed in advance. An adaptive strategy bests them both. Inspired by the complementary strengths and weaknesses of "Stay the Course" and "Crash Program," we considered a flexible alternative that imposes rigorous emissions limits but relaxes them if they cost too much. Such a strategy can be robust. If the technological optimists are right (the decoupling rate turns out to be high), the cost threshold is never breached and industry meets the aggressive environmental goals. If technological pessimists prove correct (the decoupling rate is low), then tight pollution restrictions will exceed the agreed-on cost limits, in which case the strategy gives industry more time to meet the goals.


 


New decision-making methods can break the POLITICAL LOGJAM that arises in Washington.


Such strategies can help cut through contentious debates by providing plans of action that all can agree will play out no matter whose view of the future proves correct. Our adaptive strategy is similar to the "safety valve" strategies that some economists have proposed as alternatives to the immutable emissions targets in the Kyoto treaty. Our new analytical machinery enables decision makers both to design such strategies and to demonstrate their effectiveness to the various interest groups involved.


 


Of course, even adaptive strategies have their Achilles' heel. In the case of the safety valve, the combination of environmental goals and cost constraints that works best in most futures performs poorly when technological innovation proves to be extremely expensive. To get around this problem, the user can repeat the analysis to come up with a variety of robust strategies, each of which breaks down under different conditions. One strategy may work well when another fails, and vice versa, so the choice between them involves an unavoidable trade-off. The computer calculates how likely each set of circumstances would have to be to justify picking one strategy over the other. Our method thus reduces a complex problem to a small number of simple choices. Decision makers make the final call. Instead of fruitlessly debating models and other assumptions, they can focus on the fundamental trade-offs, fully aware of the surprises that the future may bring.


 


Clearly, this approach is applicable not only to sustainable development but also to a wide range of other challenges: bringing new products to market, managing the nation's entitlement programs, even defeating terrorism. Science and technology cannot change the future's fundamental unpredictability. Instead they offer an answer to a different question: Which actions today can best usher in a desirable future? Humans and computers search for plausible futures in which a proposed strategy could fail and then identify means to avoid these potential adverse outcomes.


Past failures of prediction should humble anyone who claims to see a clear course into the decades ahead. Paradoxically, though, our greatest possible influence in shaping the future may extend precisely over those timescales where our gaze becomes most dim. We often have little effect on a predictable, near-term future subject to well-understood forces. Where the future is ill defined, unpredictable and hardest to see, our actions today may well have their most profound effects. New tools can help us chart the right course.


 


STEVEN W. POPPER, ROBERT J. LEMPERT and STEVEN C. BANKES straddle the worlds of science and policymaking. They work at the RAND Corporation in Santa Monica, Calif., one of the country's most renowned think tanks. Popper, an economist, studies how organizations incorporate technological innovation. Lempert, a physicist, specializes in environmental and energy policy. Bankes, a computer scientist, is the father of new methods for computer simulations. All have worked with government and international organizations such as the White House Office of Science and Technology Policy, the Department of Defense, the National Science Foundation and the United Nations. They teach in the Pardee RAND Graduate School and are founders of Evolving Logic, a firm developing software to facilitate the robust decision methods discussed in this article.


 


MORE TO EXPLORE:


 


Exploratory Modeling for Policy Analysis. Steven C. Bankes in Operations Research, Vol. 41,


Assumption-Based Planning. James A. Dewar. Cambridge University Press, 2002.


Shaping the Next One Hundred Years: New Methods for Quantitative, Long-Term Policy Analysis. Robert J. Lempert, Steven W. Popper and Steven C. Bankes. RAND MR-1626; 2003. Available online at www.rand.org/publications/MR/MR1626


High-Performance Government in an Uncertain World. Robert J. Lempert and Steven W. Popper in High Performance Government: Structure, Leadership, Incentives. Edited by Robert Klitgaard and Paul C. Light. RAND-MG-256; 2005.