文章来源:未知 文章作者:meng 发布时间:2010-09-28 01:54 字体: [ ]  进入论坛

Electric cars hold greater promise for reducing emissions1 and lowering U.S. oil imports than a national renewable portfolio2(公文包,文件夹) standard, according to research conducted by Rice University's Baker3 Institute for Public Policy. This assessment4 is among several contained in a new major policy study the Baker Institute Energy Forum5 will release at a Sept. 27-28 conference titled "Energy Market Consequences(后果,影响) of an Emerging U.S. Carbon Management Policy." The study comprises(包含) several academic working papers on a variety of topics, such as carbon pricing, the wind industry, global U.S. carbon and energy strategies, and renewable energy R&D.

"As the country moves forward to deliberate(考虑) on energy and climate policy," the executive summary states, "consideration must be given to what policies would best accomplish the stated goals for U.S. policy — a reduction in the need for imported oil and in greenhouse gas emissions." The papers released at the conference seek to "clarify and debunk6(揭穿,暴露) common myths that currently plague(折磨) the U.S. energy- and climate-policy debate."

For instance, the Baker Institute analysis found "the single most effective way to reduce U.S. oil demand and foreign imports would be an aggressive campaign to launch electric vehicles into the automotive fleet." In fact, mandating7(授权,命令) that 30 percent of all vehicles be electric by 2050 would both reduce U.S. oil use by 2.5 million barrels a day beyond the 3 million barrels-per-day savings8 already expected from new corporate9 average fuel efficiency standards, and also cut emissions by 7 percent, while the proposed national renewable portfolio standard (RPS) would cut them by only 4 percent over the same time.

Moreover, the researchers found that "business-as-usual market-related trends might propel the United States toward greater oil and natural gas self-sufficiency over the next 20 years while scenarios10 specifically focused on strict carbon caps and pricing or a high carbon tax of $60 a tonne or more could lead to a significant increase in U.S. reliance on oil imports between now and 2025. A carbon tax of $30 a tonne would also increase U.S. dependence11 on imports of foreign liquefied natural gas(液化天然气) (LNG) by 2025."

The Baker Institute researchers foresee natural gas -- reinforced by recent discoveries of vast reserves of shale12(页岩,泥板岩) gas -- playing "a very important role in the U.S. energy mix for decades to come." Under a business-as-usual approach, the United States won't have to import any LNG for decades. And the growth of natural gas will help the environment by lowering the demand for coal.


1 emissions 1a87f8769eb755734e056efecb5e2da9     
排放物( emission的名词复数 ); 散发物(尤指气体)
  • Most scientists accept that climate change is linked to carbon emissions. 大多数科学家都相信气候变化与排放的含碳气体有关。
  • Dangerous emissions radiate from plutonium. 危险的辐射物从钚放散出来。
2 portfolio 9OzxZ     
  • He remembered her because she was carrying a large portfolio.他因为她带着一个大公文包而记住了她。
  • He resigned his portfolio.他辞去了大臣职务。
3 baker wyTz62     
  • The baker bakes his bread in the bakery.面包师在面包房内烤面包。
  • The baker frosted the cake with a mixture of sugar and whites of eggs.面包师在蛋糕上撒了一层白糖和蛋清的混合料。
4 assessment vO7yu     
  • This is a very perceptive assessment of the situation.这是一个对该情况的极富洞察力的评价。
  • What is your assessment of the situation?你对时局的看法如何?
5 forum cilx0     
  • They're holding a forum on new ways of teaching history.他们正在举行历史教学讨论会。
  • The organisation would provide a forum where problems could be discussed.这个组织将提供一个可以讨论问题的平台。
6 debunk inMzK     
  • let's debunk some of the most common falsehoods.让我们来揭穿一些最常见的谬误吧。
  • Sequences of maps can also debunk misconceptions.一系列的地图,也有助于厘清错误概念。
7 mandating c62e9d854cbfb789e6edc0c8d21324f7     
  • Current requirements mandating that committees keep minutes are too general. 目前对委员会要保持详细记录的指令性要求,还是太过一般化了。
  • Mandating that workers who quit without permission forfeit a month's wages. 规定工人私自离岗将受到罚没一个月工资的处罚。
8 savings ZjbzGu     
  • I can't afford the vacation,for it would eat up my savings.我度不起假,那样会把我的积蓄用光的。
  • By this time he had used up all his savings.到这时,他的存款已全部用完。
9 corporate 7olzl     
  • This is our corporate responsibility.这是我们共同的责任。
  • His corporate's life will be as short as a rabbit's tail.他的公司的寿命是兔子尾巴长不了。
10 scenarios f7c7eeee199dc0ef47fe322cc223be88     
  • Further, graphite cores may be safer than non-graphite cores under some accident scenarios. 再者,根据一些事故解说,石墨堆芯可比非石墨堆芯更安全一些。 来自英汉非文学 - 环境法 - 环境法
  • Again, scenarios should make it clear which modes are acceptable to users in various contexts. 同样,我们可以运用场景剧本来搞清楚在不同情境下哪些模式可被用户接受。 来自About Face 3交互设计精髓
11 dependence 3wsx9     
  • Doctors keep trying to break her dependence of the drug.医生们尽力使她戒除毒瘾。
  • He was freed from financial dependence on his parents.他在经济上摆脱了对父母的依赖。
12 shale cEvyj     
  • We can extract oil from shale.我们可以从页岩中提取石油。
  • Most of the rock in this mountain is shale.这座山上大部分的岩石都是页岩。
TAG标签: energy cars carbon emissions