And yet, not only did we survive the last glacial period [1] which lasted ten times longer than agricultural civilization has thus far, but we used the lower te

And yet, not only did we survive the last glacial period [1] which lasted ten times longer than agricultural civilization has thus far, but we used the lower temperatures to spread through entire continents and migrate across oceans that had isolated us before. We have seven billion more people on Earth now, so naturally only those that are born in or migrate to the regions capable of supporting such density survive. All I said is that humaninty's ability to adapt is unprecedented, not that all of humanity will survive shocks to the environment as massive as large sea level rises or a major ecological collapse. However, given our performance over just the last century, I wouldn't bet against the constant growth of our population outside of a mass extinction event like a super volcano or large asteroid.