Global warming is a crock. It's part of the world's natural processes of warming and cooling. And any scientist who CLAIMS to be able to prove otherwise needs to show me more than 120 years of recorded temperatures. That's not even a microsecond in the history of the world. You want to convince me? Show me the last hundred thousand years of climate changes, temperature-based, from year to year. And guess what? If you could do that, you'd probably notice that our planet actually goes through these periods of heating and cooling naturally. It has more to do with precession than greenhouse emissions, lol.
But that's not to say that the emissions aren't helping. :/ And it's not just America. At least we have regulations about that sort of thing. That's why most of our factories moved to Mexico, where those laws don't yet exist. But with all the misformed, mutated babies being born down there due to the toxic contaminants in the drinking supply, it won't be long before they get stricter regulations too.
I say we wait until the fossil fuels go away. By then, we'll have to use cleaner energies anyway, lol.