He read 3000 peer-reviewed papers on the effects of climate change and summarized them, one chapter per degree, with extensive references. Massive drought in the western U.S. was in his chapter for one degree of warming, right where we're at now.
Given what's in his later chapters, I'm not too happy about seeing him accurate so far.
After that it got bad. I forget the details but by four degrees it looked to me like modern civilization would have a hard time staying viable, and by six it was hard to imagine our species surviving.
I suspect before we got near extinction point there would be plans for the last few tens of thousands to survive underground/underwater/in domes/at high altitude/latitude etc. We have people talking seriously about a colony on another planet, after all.
In terms of underground or dome living, that has been attempted at small scale and timeframe and with external support and failed. People talk about a lot of things, but ultimately only 12 humans have ever step foot on anything other than the Earth, for total of less than a week. Mars is 500 times further away than the moon. The underground stuff is most plausible and has lots of issues.
It is extremely frustrating to read stuff like this because it's easier and more likely to succeed to prevent global warming in the first place than it is to deal with the worst consequences.
People talk seriously about a lot of things, doesn’t mean they are viable or realistic.
The more intensive ideas like underground bases would have to be built well before modern civilization collapsed. They'd cost a lot, and we'll have less and less resources available as the damage worsens, so doing it in time might require more foresight than we've shown so far.
Just going to high altitude would be less protective but relatively cheap. But any small refuge would have to deal with a lot of well-armed people fighting over it, plus epidemics brought on by overcrowding and mass migration. It might be safer to be on Mars.
But sure, in theory a small population could eke out an existence in an enclosed base.
And yes, I use throwaway accounts because the HN hivemind slaughters anyone that goes against the mainstream opinion. If you don't want to respond to me because of this, then don't. If moderators want to remove this comment, then by all means please do. But I don't know who it helps.
You needn't use your real name of course, but for HN to be a community, users need some identity for others to relate to. Otherwise we may as well have no usernames and no community, and that would be a different kind of forum. https://hn.algolia.com/?sort=byDate&dateRange=all&type=comme...
I don't think it's true that "the HN hivemind slaughters anyone that goes against the mainstream opinion", and I'm not seeing that in most of the comments you've posted.
depends on where you happen to be at the time ...