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This analysis provides an assessment of reductions in greenhouse gas (GHG) emissions that could be achieved by Title III of the amendment in the nature of a substitute to H.R. 2454, the American Clean Energy and Security Act (ACESA) sponsored by Chairmen Waxman and Markey released on May 19, 2009. This assessment is an update to a previous analysis released on April 21, 2009 and reflects a significantly revised reference case recently released by the Environmental Protection Agency. To account for the effects of different components of H.R. 2454, reduction estimates are divided into three scenarios:

  • 仅在两个提议的排放帽(Hyfluoroaroapon(HFC)消费量和整个经济上限的上限)下,总排放量减少。
  • 帽子和所有其他互补要求下的总排放量减少,包括无上限来源的排放性能标准以及2025年补充减少计划的所需组件。
  • 通过1.25的国际偏移和补充减少,可以实现一系列潜在的额外减少。

关键发现:

  • ACESA中提出的污染上限将在2020年降至2005年的水平低15%,到2050年低于2005年的水平73%。
  • 当考虑到ACESA的所有互补要求外,除了CAPS外,温室气体排放量将在2020年降低2005年的水平28%,到2050年将降至2005年的水平低于2005年的水平。
  • 当考虑额外的潜在排放减少时,到2020年,ACESA最大降低了2005年的最高降低33%,到2050年,高达2005年的水平高达81%。实际减少量将取决于用于用于的国际偏移量的数量遵守。
  • The ACESA’s proposed pollution caps result in reductions of total GHG emissions of 15 percent below 2005 levels by 2020. This is less than the 17 percent reduction from 2005 levels that the Waxman Markey Discussion Draft as released would have achieved.