Whenever I read or hear something from a climate change denialist, the phrase “it is not anthropogenic” often comes up. Personally, I believe it is (and, yes, I have looked at the raw data), but my question is this: does it matter if it is man-made?
The planet is undoubtedly warming up. The data shows that. The Antarctic ice is melting and glaciers are retreating. Go and look at the data yourself and make up your own mind.
And have a look at graphs showing how sea-levels have been rising:
Image from Wikimedia Commons
Given all this evidence (I use that word deliberately; it is evidence – these are facts, not speculation), and after ignoring the “anthropogenic vs. not anthropogenic” argument, shouldn’t we be doing something about it?
Here is an analogy. I’m sure there are better analogies out there, but here is mine. If, say, due to natural erosion and weathering, a huge slab of rock is looking like it may crash down from a mountain on to a village, would we just say “we didn’t create the problem, so we’re not going to do anything about it”?
I don’t think it matters whether it is our fault or not – we need to do something to slow down the trend that the data is showing us.