- 最后登录
- 2011-5-30
- 在线时间
- 65 小时
- 寄托币
- 235
- 声望
- 8
- 注册时间
- 2009-2-24
- 阅读权限
- 15
- 帖子
- 4
- 精华
- 0
- 积分
- 188
- UID
- 2606523

- 声望
- 8
- 寄托币
- 235
- 注册时间
- 2009-2-24
- 精华
- 0
- 帖子
- 4
|
刚回来,总结一下今天的行程:
除去上下午的课程,之后便是GRE时间,主要做了《GRE阅读测试与解题策略》中“的第三章第三节 推理型”,再此推荐一下,该书是国防工业出版 作者是范红、李艳,虽旧了点,但蛮有练习的价值。
之后,由于之前作文的不顺利,于是又仔细参阅了草木前辈的“段落内部的句子结构和句子连接.doc”,至于背单词,那是每日必行,今天背了3个list~
_________________________________________________________________________________
climate_change_debate(阅读笔记)
Eco阅读笔记——by deeper99
About
Economist Debates adapt the Oxford style of debating to an online forum. The format was made famous by the 186-year-old Oxford Union and has been practised by heads of state, prominent intellectuals and galvanising figures from across the cultural spectrum. It revolves around an assertion that is defended on one side (the “proposition”) and assailed on another (the “opposition”) in a contest hosted and overseen by a moderator. Each side has three chances to persuade readers: opening, rebuttal and closing.
The proposer’s rebuttal(辩驳,举反证) statement
September 25th 2009
The world must quit fossil fuels completely, and as fast as we can, abandoning business as usual for business as unusual. Protesting that we cannot do it overnight or that it will require a great effort is to tell us what we already know. But that is no reason not to start at once.
(a)Are the challenges technical? Technical barriers to the adoption of renewable energy are crumbling. Concentrating solar power plants can store steam at high pressure and use it to drive turbines(涡轮机) overnight, delivering solar power in the dark. The solar farms of Spain may look as if they have sprung from the Matrix, but they are our present and a signpost(路标) to our future.
Shifting to business as unusual means that the future of the power market is not railway loads of dirty coal running on fixed lines to the vast furnaces that burn our sky. It is an energy internet, a flexible, adaptive world of ends, where anyone who wishes can contribute or consume.
High voltage direct current transmission lines, such as the one linking Norway and the Netherlands, herald(or predict) the construction of power grids that will make supply-side power management possible on an at least continental scale. Demand management will come from smart grids that allow
consumers of power to shift their consumption to the periods when it is cheapest.
Systems like this are already starting to emerge.
(b)Are the challenges financial? Far greater sums of capital were mobilised to bail out the banks than are needed to bail out the planet. The world is already planning to invest $11 trillion in energy infrastructure between now and 2050. The additional investment required to deliver an energy revolution is around $3 trillion over 40 years, and that can be earned back through fuel savings.
Is there simply too much to do? Almost none of the power stations in operation today expects to be running in 2050. As they all have to be replaced, why shouldn't we replace them with clean technology? It will leave us all better off.
It was business as usual that led us to channel billions into Alberta's tar sands, turning an area the size of England into a slice of hell, and creating a toxic lake so vast that it requires the world's second-largest dam to hold it back. We had better options available than choosing a technology that requires four barrels of water to create a single barrel of oil, and which returns only three times the energy invested. Our lack of imagination is leading us to destroy our ecosystem.
Can efficiency potentials be realised? We agree with colleagues at Rice University who had this to say about their prototype energy-efficient Zerow house. "[This] is not a 'pie in the sky' idea, these are viable technologies that people can use in their own homes." The solutions are out there.
39 Economist Debates: Climate Change
A 2007 McKinsey report agreed, finding that if we take all the investment opportunities in energy efficiency that return more than 10% a year we could cut the growth in projected power demand by half. They did note that market forces alone would not deliver this, but simple, pragmatic policymaking could.
So, as we have both the means and the opportunity, can we find our motive? I would argue that it is not just the opportunity which compels us to act. It is our conscience.
As the author of a book which shows the reader how "transfers of wealth to and from the Middle East result in a perfect storm of global asset and financial market bubbles, increased unrest, terrorism and geopolitical conflicts, and eventually rising costs for energy", you are of course familiar with the costs imposed on our society by fossil fuel.
Against this already problematic situation has to be weighed last year's paper by Javier Solana, who heads EU foreign policy. He stated: "Climate change is best viewed as a threat multiplier which exacerbates existing trends, tensions and instability. The core challenge is that climate change threatens to overburden states and regions which are already fragile and conflict prone."
A 2007 report for the Center for Strategic and International Studies noted that "The least we should prepare for" is "heightened internal and cross-border tensions caused by large-scale migrations, conflict sparked by resource scarcity, particularly in the weak and failing states of Africa; increased disease proliferation, which will have economic consequences; and some geo-political reordering as nations adjust to shifts in resources and prevalence of disease."
40 Economist Debates: Climate Change 41
Since then the best predictions for sea level rise in this century have been revised from 40-60 cm to 1-2 metres. 10% of the world's population lives less than 1 metre above sea level. Relocating or defending these population centres will require massive investment and cause unprecedented social disruption.
If we can save the island nations that face annihilation, why shouldn't we? If we can save the homes of 100m Indians and Bangladeshis, shouldn't we? The first to suffer will be the least culpable. To the West's legacy of colonialism, slavery and exploitation will be added one of environmental devastation. That is not a future we should sleepwalk our way into.
If 75% of the US car fleet can be replaced in ten years then let's get to it, with more efficient cars, electric cars and expanded public transport systems. As the public reaction to high petrol prices and a proliferation of cash-for-clunkers schemes has shown, governments can effectively reshape the car market when they choose to. Let's embrace home working and the technologies that make it possible. Should our children really spend as long in traffic jams as we do?
To throw up our hands, to say the road is too hard, the challenge too great, to go quietly into the dying of the night would be a poor way to face our generation's greatest challenge. We can and must do better. Economist Debates: Climate Change
The opposition’s rebuttal statement
September 25th 2009
With all due respect to our moderator, Robert Lane Greene, and my illustrious debating opponent, Gerd Leipold, my "pragmatist debating opening" is not something to be lightly pushed aside just because it is an unpleasant reality for those who seek "bold" and immediate action. Indeed, the opposite is true. (强大的让步)It is the views expressed by Mr Leipold that have in fact become universal platitudes spoken on a global basis that divert us from the kind of urgent, more comprehensive planning that is needed. Platitudes about the potential of marginal clean-tech programmes do not offer real solutions of the magnitude and scale needed to tackle the issues that Mr Liepold so eloquently expressed as an emergency for mankind.
Mr Liepold mentions optimistically that China plans to install around one wind turbine an hour this year, double last year's rate, but he fails to tell our readers how many more coal plants will similarly be added in China each year to meet its rising energy use. The greenhouse gas (GHG) emissions to be added from China's increased coal use in the coming decades will, in fact, be larger than all of the planned GHG emissions reductions to be removed from the atmosphere by the caps and policies now under way in the West.
Mr Liepold notes that "as climate change continues to take hold, access to the basic things we need to live—food, water and shelter—will become increasingly tenuous for billions of people". And Mr Greene notes that my opening fails to mention climate science. So let's be blunt about the current progress of climate science so that the public knows what still needs to be known. The reality of our decades of work on the science of climate change is that it is still woefully lacking in the much needed detail of the exact where and when drought, flooding, food shortages and other serious impacts will strike. To have an effective and comprehensive global climate policy that will address the kinds of challenges that may affect the world's most vulnerable populations, far more precise projections of climate impacts on individual regions and countries need to be developed. More research dollars must be directed to enable more precise predictions of long-term and short-term impacts and at different geographical scales, from global to continental to national, regional and urban. In order for nations, states and cities to plan, they will need dramatically improved resolution than the current projections.
As John Holdren, the US president Barack Obama's science adviser, has stated publicly, it is already too late to avoid substantial climate change, given the existing rate of accumulation of GHGs in the atmosphere. Any serious global climate policy needs to include adaptive strategies as well as mitigation strategies. The likely impacts of climatic changes on human civilisation, global ecosystems, global agriculture, water resources, coastlines and coastal infrastructure need to be better understood through increased science and economic research based on the best available scientific knowledge about climate. The United States, for example, is a major producer of food for both its own population and the world market. For my country specifically, more research is needed on the impact of climate change on the productivity of US agricultural lands, fisheries, and the safety and availability of US water resources.
We should be debating a comprehensive approach to climate change. What is needed is not the kind of tinkering at the margins in alternative energy anecdotally listed by Mr Liepold. What is needed is a comprehensive set of policies that encompass a highly proactive, international diplomatic effort, a dramatically more robust global science and technology development R&D programme, a far more concrete set of regulations for CO2 emissions across the globe, and well researched, well planned adaptation strategies for the protection of vital infrastructure and vulnerable communities, especially human coastal populations.
The magnitude of the requirements for cleaner energy production and enhanced efficiency is so large that the kind of small-scale innovation discussed by Mr Leipold and others like him will not be adequate to address the challenges. Instead, policies are needed that will promote a rapid turnover in billions of dollars of infrastructure and development in technologies that can be readily scaled up and dispersed with unprecedented market penetration. Our moderator mentions carbon capture and storage (CCS) technology as a promising future technology for continued fossil fuel use that would meet climate goals. But the reality is that such technology does not exist today at costs that are commercial under current regulatory frameworks and commodity pricing in Europe and the United States (much less the developing world, where fuel pricing is still subsidised by governments). The European Union Emissions Trading Scheme (ETS) price for tonnes of carbon is currently 14 times lower than the cited costs per tonne of StatoilHydro's planned CCS programme at Mongstad, Norway. Thus, commercial investment in CCS is likely to move incredibly slowly, unless we see dramatic cost breakthroughs or rigorous firmer controls on carbon and more rigorously designed offset markets.
Sadly, at this time, no country in the world is committing sufficient funding for the R&D of new technologies (like CCS or solar) that will be badly needed to mitigate GHG emissions on the scale that would meet the proposition for leaving business-as-usual fossil fuel use quickly behind. Sadly, there is not even a discussion of investment in R&D on the scale that is required. We are all hoping for a technological miracle to happen magically, cost-free to us and not requiring any lifestyle changes for the average Westerner who continues to gobble up carbon-laden energy at voracious rates.
Moreover, other policies in the early benefits category, such as curtailing world deforestation, especially tropical deforestation, are similarly not making sufficient progress in global diplomatic climate discourse. Forest destruction is responsible for 20% of global carbon emissions each year. Higher taxes and royalties on timber harvests, in addition to removal of all subsidies for forest clearing, would contribute materially to reducing GHG emissions. National biofuels policies must also be immediately rethought. Moreover, since non-tropical, industrial countries should be more forthcoming in offers to share the costs of creating and maintaining new forest reserves. We all have a vested interest in maintaining tropical forests intact in places like Brazil and Indonesia.
Other interesting ideas are kicking around the science community, such as using ocean plants such as phytoplankton, enhancing the use of carbon-absorbing soils
45 Economist Debates: Climate Change
(including possibly, if science confirms it, the use of biochar soil), and futuristically, "scrubbing" CO2 from the atmosphere (e.g. carbon towers spraying a sodium hydroxide solution to trap CO2 molecules).
An international agreement against methane and soot flaring is another pressing and necessary step needed to immediately reduce global emissions build-ups. Flaring currently contributes about 400m tonnes of carbon a year, the same scale of emissions from all vehicles in the UK, France and Germany. Flaring poses an immediate health risk to local populations and wastes a valuable resource, natural gas, which is a cleaner fuel than coal and oil and which, if captured, could be used to provide cleaner fuel for power generation and industry, adding diversity to local or exported energy supplies. The leading contributors to global natural gas flaring include Nigeria, Russia, Iran, Algeria, Mexico, Venezuela, Indonesia and the United States.
There is one thing on which Mr Leipold and I firmly agree. The time has come to phase out non-sensible subsidies to high carbon-emitting energy consumption. Given global climate and energy security challenges, such subsidies are creating dangerous distortions in the energy market and thwarting a much needed shift to energy-efficient technologies in the developing world, where much of the future increase in fossil fuel use will be. The government handouts that should be immediately removed include reckless US subsidies for corn-based ethanol, as well as consumer-friendly petrol fuel subsidies in countries throughout the Middle East, parts of Latin America, China, Russia and Mexico.
46 Economist Debates: Climate Change 47
So, I respectfully argue, I might be a pragmatist, but some down-home, market and scientifically based pragmatism is what it is going to take if we are going to address climate change effectively.
_________________________________________________________________________________
首段,介绍、小让步+直接与对手针锋相对。【好句收藏】 Indeed, the opposite is true.(It is the views expressed by Mr Leipold that have in fact become universal platitudes)
第二段,先从对手的论据开始反驳:即便中国今年差不多每一个小时就安装一台风能发电机,增长率比去年多了一倍,但为提及煤矿工厂的增加速度。
第三段,考虑能源带来的气候异常,需要更多资金投入到天灾的应对中。
【好句收藏】(1) So let's be blunt about the current progress of climate science;
(2)it is still woefully lacking in the much needed detail of the exact where and when ;
第四段,援引奥巴马的科学顾问的观点——现在再来阻止气候异常已经太迟了,言下之意:应当投入更多来应对异常气候,继续支持第三段观点;
第五段,正确的作法;
第六段,对手的作法不具可行性(包括反对派及中立派);
第七段,对第六段补充,说明CCS等更加有前景的保护环境的新科技难以普及;
第八段,更坚定地执行保护森林的计划;
第九段,其他减少CO2的奇思妙想;
第十段,介绍较好的减少CO2方法——agreement against methane and soot flaring;
第十一段,自己与对手的共同信念:是时候更加坚定地减少co2;
第十二段,总结。
只能感慨:地道的辩论果然还是不一样啊@
|
|