Let's say you're right. Bush and the Republicans didn't delay the process by killing Kyoto. The Democrats had a majority, so they killed it. Right. Gore would have been no different from Bush, because an ice statue says so. Okay. But that doesn't change something.
After Kyoto died, Republicans made it illegal for the government to study it and find the budget numbers. Even if Kyoto was a bad treaty, which it wasn't, there should have been a process of evolving toward a better treaty. The process stopped dead in its tracks. To now say that it will take several presidencies is a big duh. That was true then, too. But Republicans want to play games till we're practically dying of thirst in the desert, when it will cost 100 times as much to solve it 10 times faster.
Let me guess your next move. "A couple of conservative Democrats voted with Republicans to make studies illegal, so it was bipartisan. So we should continue not finding the numbers."