Hmm, I think I have a far different take on the outcome of non-human future for this planet... annihilation.

If there is any hope for this little marble for the next few million years, it rests singularly with us. Of all the species to have come and gone on this planet, we are the only ones who've made it to a technological condition whereby we possess the capability to actually avert the effects of a natural cataclysm. It may well rest with us whether or not the pushing of nature's reset button can be pre-empted, and most life on this planet can be spared.

I do not subscribe to the chicken little inuendo of the author, though I would tend to affirm his posit that our relative impact on our planet's ecological dynamics have, to date, been rather modest and superficial. Alarmists have a tendency to grossly exxagerate the size of our footprint so as to disproportionate the environmentalists' argument. Were it not for the author's opening statements, I would conclude this article has appropriate perspective. Alas, the theme doth run a bit droll.