It used to be the case that whatever you thought of his other hijinks, Joe Lieberman had quite sound views on the environment. Unfortunately, as Bill McKibben points out that's now less true than one would like:

On Capitol Hill, the situation is a little more interesting. The Democratic majority is finally beginning to move legislation that would commit the United States to long-term reductions in carbon dioxide emissions -- the first law Congress might actually pass in the years since global warming became an issue. But here, too, the legislative process is backing away from what science demands -- a strong bill put forward by Sens. Barbara Boxer (D-Calif.) and Bernie Sanders (I-Vt.) is in danger of being supplanted by half-measures proposed by Sen. Joe Lieberman (I-Conn.).

In part, here, I can actually sympathize with Lieberman since had his bill passed four years ago when he first proposed it, that really would have been much, much, much better than what's actually taken place. Unfortunately, the nature of the beast is that with every wasted year that goes by, it becomes more and more necessary to take relatively drastic action.