walrus deaths

Marshmallows and musical chairs help teach Cap'n Trade 101

Well, this week has been a historic one on the climate change front. The Environmental Protection Agency announced that it was going to place more stringent regulations on the nation's largest carbon emitters -- which represent only 2 percent of U.S. businesses, but 70 percent of greenhouses gases -- and Senate Democrats released a draft bill that included even more zealous carbon cuts than one passed by the House earlier this year. (More in Emily Gertz's roundup.)

While most agree that curtailing greenhouse gas emissions and working to slow global warming is a hunky dory idea, especially when you've got walrus pups being trampled alive in Alaska as a result of disappearing sea ice, many still disagree over the means to that end.

[caption id="attachment_4696" align="alignleft" width="150" caption="Alan Durning. Photo courtesy of Sightline.org"]Alan Durning. Photo courtesy of Sightline.org[/caption]

One of the ways politicians have proposed combating emissions is through a carbon cap and trade system. While the idea has been kicked around in Congress for a few years now, the concept is still widely debated and -- not surprisingly --  still perplexing to many.