Even the worst case models predict that Earth will be habitable for humans for a long time. IIRC the worst that can happen in the next 100 years is that the sea will raise a few foots and flood some costal cities, change the sites where you can cultivate some food and cause hunger in some places, more floods and drought in many places, and kill many animals and plants. The worst case prediction is a huge huge huge disaster but it is still faraway from the point it is uninhabitable for us (and uninhabitable for roaches (and uninhabitable for bacteria)).
pas|7 years ago
Tade0|7 years ago
Go beyond that and everyone dies.
gus_massa|7 years ago