Much is being done by this administration, to prevent anything effective from being done. If that could be accomplished by literally doing nothing, I'm sure he would do that. Since it can't, he'll instead call for more studies, or for measures that will not solve the problem or even contribute to doing so.

Any effective measures will be mandatory. Cap-and-spend introduces some flexibility into the program, which is good, but the requirements remain even if there are two ways to meet them. McCain is calling for something that is actually doing something, where Bush is doing something that amounts to doing nothing. Big difference.