Of course, the quote on the image above is a parody of a real quote, but the The 10 Dumbest Things Ever Said About Global Warming compiled by Brooke Jarvis for Rolling Stone are sadly real.
It is hard to pick, but this may be my favorite:
"I have a theory about global warming and why people think it's real. Go back 30, 40 years when there was much less air conditioning in the country. When you didn't have air conditioning and you left the house, it may in fact have gotten a little cooler out there, because sometimes houses become hot boxes. Especially if you're on the second or third floor of a house in the summer time and all you've got is open windows and maybe a window fan. Or you have some servant standing there fanning you with a piece of paper. When you walked outside, no big deal, it's still hot as hell. Now, 30, 40 years later, all this air conditioning, and it's a huge difference when you go outside. When you go outside now, my golly, is it hot. Oh. Global warming. It's all about the baseline you're using for comparison."
Head over to Rolling Stone to learn what brain genius said this and read the rest of the list.