Climate change and the loss of species and such is one manifestation of overpopulation. Covid-19 could be viewed as another, in my opinion.
Obviously this is all rich coming from an American living in the suburbs (I don’t really see what my alternatives are), but I can’t help but think we can only sustain around a billion people without destroying the planet (speculation).
We live in a golden age of cheap energy and consumption. People get in gasoline powered cars and drive a mile down the road to get a snack. That’s impossible to maintain. Not only do we have overpopulation, but we built unsustainable cities, predicated on infinite cheap energy ($2.50 gas). Electric cars won’t fix this, although they’ll help.