"..and even occasionally politically active writer and lecturer."

LOL. I guess you don't read his blog/opinion column in the New York Times on a regular basis, do you?

LOL. All the way to the bank.

Yes, I do read his column on a regular basis. I do not hear him say that the problem we face is, well, us.

That unless human beings stop behaving as though they can appropriate 100% of all of earth's resources (and even if we do), that the planetary alignments are going to shift -- and not in a nice way.