Re: The more I know, the less I am sure of.
Buying a house at the top of a decent sized hill is ALWAYS a good idea. Even if sea level isn't rising, there's the occasional flood. And even if you are lucky enough to not have a flood, it's still the better position from which to throw rocks or whatever.
There's never been enough data to back up their claims for one very good reason: to make a claim you need a baseline. They've never had a real baseline. The last ice age allegedly ended about 12,000 years ago and started 110,000 years ago and thought to have been the last event in a 2 million year cycle of such events. Even if you assumed our earliest records were as complete and good as our current ones, that gets you maybe 400 years of data. That means at best we've got 3.3% of a baseline, more likely 0.36% of one. That's not enough to calculate a baseline.
Neither is your assertion that "anything you can do to cut down on pollution is good" true. If you kill 1 million people in London it will obviously reduce pollution a fair chunk. I wouldn't call that good under any circumstances. I think I understand what you were trying to say, but that wasn't what you wrote. It is in that ambiguity that charlatans thrive.