Today President Obama unveiled the strongest climate action plan in US history, and the first to set Federal limits on carbon emissions from power plants. Under the new Clean Power Plan—which will undoubtedly face legal challenges from the coal industry—power plants will be required to cut emissions by 32 percent from 2005 levels by 2030 to help curb climate change. States can also avail themselves of new initiatives to increase renewable energy generation. The plan amounts to the equivalent of taking 166 million cars off the road and could reduce premature deaths due to power plant emissions by 90 percent.