Global Warming/climate change probably does exist, but probably not at the levels that proponents are claiming. Regardless of whether or not it exists, humans are going to need to shift to more renewable energy sources as natural resources like oil and coal are depleted, as these are finite. The smart thing would be to GRADUALLY shift away from using natural resources as they are depleted, or to at least have the infrastructure in place to make a switch when the time comes.
As with any new technology, the government should understand it, monitor it, and regulate it to an extent, but should fall short of mandating it. The best innovations and breakthroughs will always come from the private sector anyway.
Humans have been burning fossil fuels for nearly a century and we are now just beginning to see the affect? Something doesn't quite jive there - granted there is more industry, cars, and people now than ever, but it all seems a little too conveniently timed.
Energy and pollution will be only one of many problems facing people in the next couple of centuries. Another more important one would probably be feeding an ever-growing population.
And I'm pretty sure a good hunk of politicians in Washington ARE "religious/cult fanatics." ;-)