... all the fraud, critical "lost" data, suppression of criticism and so on doesn't prove that there's no global warming — people can lie about things that, nonetheless, turn out to be true — but it has to induce a certain degree of skepticism. So what should we do?
Nothing. At least, in my opinion, we should continue to try to minimize the use of fossil fuels regardless. Burning coal and oil is filthy, and they're more valuable as chemical feedstocks anyway. We should be building nuclear plants and pursuing efficiencies in the shorter term, while working on better solar (including orbital solar), wind, etc. power supplies for the longer term.
I agree. Cap and trade is a bunch of crap with primarily political goals.
But I'm all for taking care of the environment and burning less oil. I was an early adopter of compact fluorescents - because I believed the hype that they would save me money in the long run. Now I'm switching back to incandescents and waiting for LED lights to get cheaper. The fluorescents never lasted as long as they claimed - some of them I replaced as often as I would have an incandescent and for a lot more money. And now of course we find out they have mercury in them which will now be going into our landfills.
I'm interested in solar, too, but again mostly I'm waiting for it to get cheaper.
And of course, I don't think the government needs to be driving this stuff. Let the markets sort it out.