Our cameras were there when 48 protesters, including the Sierra Club's Michael Brune, were arrested outside the White House.

A collection of links to the articles and editorials that we're passing around the office today.

Our daily roundup of recommended reads: today's articles include reports on the NRA's aversion to disclosure, the terrifying effects of climate change and the psychology of debt.

The NOAA has confirmed what many already predicted: 2012 was the warmest year ever for the contiguous U.S.

Submit your clever ideas in the latest caption-the-cartoon contest and you may end up in our winners gallery!

Activist Bill McKibben writes that unless we act soon on climate change, "there’s not much reason to act at all."

Climate change communication expert Anthony Leiserowitz explains why climate change gets the silent treatment, and what we should do about it.

A climate change communication expert describes his efforts to galvanize communities over what’s arguably the greatest single threat facing humanity.

From Portland to Philadelphia, city mayors are addressing climate change on their own turfs.

Annie Leonard, director of The Story of Stuff, says reusable water bottles and canvas shopping bags are not enough.