Los Angeles Times: The Environmental Protection Agency unleashed a full-throated defense on Thursday of scientific evidence that mankind is dangerously warming the planet, and of the Obama administration’s unilateral moves to curb the heat-trapping gas emissions scientists blame for climate change. Rejecting a series of critiques lodged by groups seeking to block federal regulation of greenhouse gas emissions — including allegations linked to the so-called “Climategate” e-mail scandal and a pair of …