EcoWatch: In a speech yesterday at environmental think tank Resources for the Future, U.S. Environmental Protection Agency (EPA) head Gina McCarthy said it was sad that those who deny the need for action on climate change hide behind the excuse that it will hurt the economy. She made the case that it was not taking action that would do, defending the steps that President Obama has announced in recent weeks, including at this weeks UN Climate Summit, as a boon to the U.S. economy. Simply put: the economy...