re: #58 Thanos
That is one reason to believe that the changes brought about by humans indeed will have a very long run.
As with what we have done with such a large part of the biosphere, where extinction is permanent, and the rapid introduction of non-native species is changing landscapes, human changes are a one-way process.
We don’t get a do-over.
One thing that continually frustrates me is how so many of the self-declared “conservatives” so flippantly approach environmental issues. They (feign?) concern over the “economy”, yet fail to realize our ecology is the original economy.