alt Hacker NewsWe are not trying to literally revert the planet to how it was 100 years ago, we are "just" trying to stop these trends as soon as possible so they don't continue for another 100 years. There are going to be consequences regardless, but they can always get worse.
Some of the planet is already much nicer than it was 100 years ago. At least in the European countries that industrialized the first or had high population density even before that.