In the U.S. alone, weather disasters caused $50 billion in economic damages in 2010.

Some studies have shown that natural gas could, in fact, be worse for the climate than coal.

In reality, Republicans have long been at war with clean energy. They have ridiculed investments in solar and wind power, bashed energy-efficiency standards, attacked state moves to promote renewable energy and championed laws that would enshrine taxpayer subsidies for fossil fuels while stripping them from wind and solar.

This Dewdrop World is a beautiful, courageous, intimate film about love and loss. It may also be the deepest meditation on climate change that I've ever seen.

Have we failed to slow global warming pollution in part because climate and environmental activists have been too polite and well behaved?

Some studies suggest that the Arctic Ocean may be ice-free by the end of the century.

Mark Ruffalo, aka the Incredible Hulk, is the natural gas industry's worst nightmare: a serious, committed activist who is determined to use his star power as a superhero in the hottest movie of the moment to draw attention the environmental and public health risks of fracking.