Poliltico: The big climate news last week was President Obama's decision to reject the Keystone oil pipeline, so there wasn't much attention paid to an electric utility's decision to retire a 60-year-old coal plant in Alton, Illinois. Unlike Keystone, the Wood River Power Station isn't a global symbol of global warming. Its owner is closing it voluntarily, for economic as well as environmental reasons. And coal plants get shut down all the time; Wood River was the 206th announced retirement in the U.S. in the...