We are only at a point of no returns in terms of continuing as-is. We won't need to dump anything into the atmosphere, the Earth will clean itself given time an

We are only at a point of no returns in terms of continuing as-is. We won't need to dump anything into the atmosphere, the Earth will clean itself given time and opportunity. I think the mostly like outcome is that in the next 100 years we will start to see massive and more severe droughts and flood. Water will become the most valuable resource and that will affect the ability to provide food. There will be massive famine because the rich countries will hoard while the poor ones starve (exponentially more so than today). I think that in 100 years the population of the Earth will be less than 2 billion and trending down. Eventually the Earth will recover just fine, it will just take 5,000 years. Any talk of going to Mars is just silly click bait. If we had to, we have the technology to support several million people completely underground, growing food via hydroponics. The Earth isn't going to 0 population outside of an asteroid or nuclear event of major proportions.