MPBN: Gov. Paul LePage, who has previously referred to global warming as "a scam," and who has said he's not convinced that human activities are a significant contributor to greenhouse gases, is now asking the Department of Environmental Protection and other state agencies to take steps - albeit small ones - to confront it. As Susan Sharon reports, his action comes just five months after he vetoed legislation that would have authorized state agencies and stakeholders to study the effects of climate change...