在我担任美国WRI美国董事的第一篇有关洞察力的文章中，我将重点关注加利福尼亚的好消息，在过去的四年中，我一直在这里工作。这个消息是：黄金州的全面气候政策套件正在奏效。必威官网是真的吗

Newly released state datashow that in 2016 — four years ahead of schedule — California met its 2020 target to get greenhouse gas emissions below 1990 levels, as set by the Global Warming Solutions Act, also known as AB 32. This represents a 13 percent reduction of global warming pollution from the state’s peak emissions in 2004.

Meanwhile, California’s economy grew by 26 percent during this same period.

该州在扩大经济的同时取得降低热气气体排放的成功证明了研究表明，有效的气候行动和经济必威官网是真的吗增长可以并且必须 -. It also provides a model that cities, other states, and eventually the federal government can examine and adapt to their own unique economic and political circumstances.

请注意，这些数字不包括土地部门的排放或拆卸，由于野火而导致一年的变化很大，并且随着时间的流逝，也可能会显着影响加利福尼亚的净排放。该州最近发布了forest carbon plan, but has not yet adopted specific quantitative targets for removals in 2030.

This was accomplished with acomprehensive approachto addressing pollution, combining a cap-and-trade program that establishes a cost for pollution, with complementary policies to drive technological innovation and deployment.

最大的减少来自电力部门，现在more than half of its generation来自无碳的来源。同时，在2008年金融危机和几年后的排放量下降之后，运输的排放又增加了。现在，加利福尼亚运输部门的排放量是产生该州使用的电力的两倍。（在全国范围内，运输部门的排放也已超过了电力部门的排放，但利润率要小得多。）

An Even More Ambitious Target

Building on its remarkable early success in bringing emissions under 1990 levels, California has set an even more ambitious target of reducing emissions to 40 percent below 1990 levels by 2030. Doing so will require the state to continue to reduce power plant emissions. Crucially, the state will also have to reverse the trend of rising emissions from cars and trucks. Even eliminating emissions from the power sector would not be enough for California to meet its 2030 target if it doesn’t also make significant reductions in emissions from the transportation sector. California’s longstanding car culture makes this challenging.

州官员正在采取措施应对这一挑战，包括：

  • 设定高级清洁汽车标准（which 12 other states have opted into），这是到2030年到达至少500万辆零排放车辆的目标；
  • 建立低碳燃料标准，加州空气资源委员会（CARB）正在将其延长至2030
  • 计划智能增长，使人们能够在不依赖单占用车辆的情况下获得工作，购物，服务和娱乐活动。

California’s size, political culture andunique status under the Clean Air Act（特朗普政府针对的）允许它以其他次国司法管辖区更具挑战性的方式领导。但是，其他州，城市和私营部门可以单独和集体将加利福尼亚的政策适应其需求，并采取自己的措施减少排放和刺激经济增长。

Whether sub-national action will be enough to compensate for a hostile federal government and allow the United States to achieve the emissions reductions it pledged to make under the Paris Agreement on climate change remains to be seen. WRI is contributing to an analysis of that question sponsored byAmerica’s Pledgeand will have more to say about it in September. Stay tuned.