> Only a pathological pessimist would describe today’s world a mess compared to what it was 100 years ago.
The problem is the future outlook, not the status quo. Climate change effects on the Northern Hemisphere (i.e. continental USA, most of Europe) haven't really become visible yet, at least not for up until the last 5-ish years that have all blown past records for extreme adversary weather events.
In addition to that comes the migration issue that will be caused by climate change. Our societies are already struggling keeping up with people fleeing from war and poverty in the South - give Africa 10-20 more years of climate change and droughts, and then the situation will be dire. Alone up to 2050 (so, in the next 26 years), predictions go for 86 million people having to flee from Africa [1] - and half of Europe fell to the far right with barely 5 million refugees from Syria, Afghanistan and other wars. We're nowhere near prepared to deal with the future.
If we really do care, we cannot have people living in Northern Europe, America and Canada. It is criminal to insist to live under conditions humans cannot survive without heating.
The problem is not heating or cooling for humans, we have technology for that (and solar power to provide power for it).
The problem is growing the crops to feed these people, which is getting harder and harder every year due to the combination of Western donations out-competing local farms and especially the rise of desertification - in 2012, it was estimated that two thirds of the land area of the entirety of Africa that's still viable for farming would be gone by 2030 [1].
