News outlets are reporting that Lisa Jackson, head of the Environmental Protection Agency, will not return for the second term of the Obama administration.
Jackson will probably be remembered as the point person for the first US attempts to regulate greenhouse gas emissions. It wasn’t necessarily a position that she—or Obama—chose. But partisan gridlock ensured that there would be no legislation addressing emissions, and Jackson inherited a Supreme Court decision from the Bush administration that indicated the Clean Air Act required some sort of action. Within months of the inauguration, Jackson’s EPA used Bush-era research to issue an endangerment finding on greenhouse gasses. Three years later, that finding led to the first limits imposed on carbon dioxide emissions by large sources, limits that would severely curtail the construction of new coal plants.
By the time they were issued, however, a sharp fall in the price of natural gas was already doing more to limit the use of coal than any EPA regulation could. (Fracking, which led to the plunge in prices, was also the subject of some initial EPA oversight.)