I agree with it. But, I've been tracking the effects of global climate change since the early 80's, as a sort of meta-study. As a result of that, I also read up on the historical evidence for the collapse of prior civilisations, particularly Mayan and Incan and so on, and their cycle of growth and collapse due to ecological degradation.

Basically, I'm saying I'd come to more-or-less the same conclusions based on decades of work.

Although, the time scale is a lot less than I'd expected, but given the way current rends in a climate change are, I'm not surprised. The greenland ice cap alone is melting far, far faster than anyone expected.