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(单词翻译:双击或拖选)
Los Angeles
03 May 2007
Leading environmental experts who are meeting in Bangkok this week are hammering out details of a report on ways to fight climate change. Several leading US scientists say the report, to be released Friday, will be the most comprehensive assessment1 to date of research on the subject. VOA's Mike O'Sullivan has details.
Climate Change conference delegates walk past protesters in front of United Nations office in Bangkok, 30 Apr 2007 |
The report to be released Friday will evaluate remedies for reducing greenhouse gasses, including carbon dioxide, which are produced by burning fossil fuels and contribute of global warming.
Three US scientists briefed reporters by telephone on the process that their colleagues are conducting this week in Thailand, as members of the panel's working group debate their recommendations line by line.
Stephen Schneider of Stanford University was the coordinating2 lead author for one chapter of a panel report released in 2001, and was co-author on another report released last month. He says national interest can influence the evaluation3 process. He says oil-producing countries and those that want to use more coal may focus on the uncertainties4 in the science. Island nations, on the other hand, may overstate the threat of global warming, which has a direct impact on their economies.
"And usually, both sides pick out parts that are true, but are out of balance in the full range of the literature. And then it is up to the lead authors to make a decision," he explained.
He says the international panel must evaluate the quality of research and summarize the options for policymakers.
Those options could include a carbon tax and other incentives5 for the use of alternative fuels, as well as measures to boost the efficiency of fossil fuels like coal. He says coal-fired power plants are responsible for 40 percent of US greenhouse gas emissions6, but that simple changes could enable the plants to achieve up to half of their share in reductions sought by the Kyoto climate accords. He says the changes would require no new equipment, only more efficient operations and better maintenance.
Art Rosenfeld, a climate scientist and a commissioner7 with the California Energy Commission, says nuclear power remains8 an option, but that California is focusing instead on increased efficiency through energy-saving technology.
Possible results of climate change include intensified9 hurricanes, droughts and flooding. More severe scenarios10 foresee the extinction11 of some species, the melting of ice sheets and disappearance12 of some low-lying coastal13 regions. The working group of the climate panel will outline various options for slowing climate change. And the US scientists say that whatever the recommendations, the costs of mitigation are likely to be lower than the costs of global warming.
1 assessment | |
n.评价;评估;对财产的估价,被估定的金额 | |
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2 coordinating | |
v.使协调,使调和( coordinate的现在分词 );协调;协同;成为同等 | |
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3 evaluation | |
n.估价,评价;赋值 | |
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4 uncertainties | |
无把握( uncertainty的名词复数 ); 不确定; 变化不定; 无把握、不确定的事物 | |
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5 incentives | |
激励某人做某事的事物( incentive的名词复数 ); 刺激; 诱因; 动机 | |
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6 emissions | |
排放物( emission的名词复数 ); 散发物(尤指气体) | |
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7 commissioner | |
n.(政府厅、局、处等部门)专员,长官,委员 | |
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8 remains | |
n.剩余物,残留物;遗体,遗迹 | |
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9 intensified | |
v.(使)增强, (使)加剧( intensify的过去式和过去分词 ) | |
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10 scenarios | |
n.[意]情节;剧本;事态;脚本 | |
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11 extinction | |
n.熄灭,消亡,消灭,灭绝,绝种 | |
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12 disappearance | |
n.消失,消散,失踪 | |
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13 coastal | |
adj.海岸的,沿海的,沿岸的 | |
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