To be fair, other scientists say that the world is, in fact, warming. I assume we’ll only know for sure when a) we are all burned alive or b) we all freeze to death.
I’ve always been sort of conflicted about the whole global warming/climate change/whatever debate. On the one hand, it always seemed slightly hysterical and a little too perfect in how well it suited the leftist worldview. On the other hand, common sense suggests that more humans engaging in new kinds of activities is bound to produce some of sort of change in the overall climate. Of course, part of the problem is that I’m not a climate scientist.
Personally, I’ve been operating on the assumption that human activity affects the climate in ways that are variable and hard to measure, and that it’s a huge oversimplification to call it “warming”. The leftists say that this is a bad thing, and use it as an excuse to push for various changes in society; some of which are relevant, and others which are not. Because it is impossible to tell which is which, conservatives dismiss the entire issue as a hoax so they don’t have to deal with it. The upshot is that one side says human activity is very, very bad for the planet and should be minimized, and one side that says it has no effect.
FYI, my suspicion is that some country will ultimately figure out how to manipulate human activity (more precisely, chemical emissions) in such a way as to control the climate. Whichever country does this will basically rule the world. I suspect that most climate research is actually dedicated to figuring out the relationship between human activity and climate; so as to be the first country to harness this power. (But remember, I’m not a climate scientist.)