Another apparently serious article that reads like an Onion spoof

The Party of Nyet [It's your fault we have to pay people in our own party to go along with this swindle?] | Mother Jones

...And the answer is obvious: it's because Republicans have cynically decided nearly en masse to blindly oppose any action on climate change whatsoever. This means that Waxman and Markey have no choice except to grimly cut deals with every last parochial interest on the Democratic side just in order to get anything passed at all. So that's what they're doing. And it's ugly.

Now, if they wanted to, Republicans, in return for their votes, could fight to keep the bill cleaner, keep it more effective, and insert provisions that would make it more acceptable to conservatives. That would be great. Waxman and Markey wouldn't have to give away the store to every congressman with a coal mine in his backyard if there were even a small band of serious Republicans willing to support a climate change bill and bargain in good faith to help get it passed.

But there isn't. It's the Party of Nyet that's created this political dynamic. They can stop it anytime they want.