Living on Earth: The race is on for the recently confirmed head of the EPA, Gina McCarthy, to get rules in place that restrict global warming emissions from power plants, before President Obama leaves office. For an inside look at Ms. McCarthy's road ahead, host Steve Curwood talks with Carol Browner, EPA chief in the Clinton administration, and climate czar during President Obama's first term. Transcript CURWOOD: When President Obama presented his climate protection plan in June, he also ordered the EPA to get...