I find that extremely hard to believe since the dinosaurs evolved on an Earth that was far hotter than what we'll see this century (as much as 10°C warmer). Yes, they evolved over millions years from the previous mass extinction event, but the point is that plenty of plants and animals were able to survive in such a warm world. It wasn't mostly inhospitable to life.
Also because humans have existed in all sorts of environments from tundras to deserts for tens of thousands of years with stone-aged technology, including ice ages. The latest IPCC reports puts the upper limit of warming under 4°C.
I find that extremely hard to believe since the dinosaurs evolved on an Earth that was far hotter than what we'll see this century (as much as 10°C warmer). Yes, they evolved over millions years from the previous mass extinction event, but the point is that plenty of plants and animals were able to survive in such a warm world. It wasn't mostly inhospitable to life.
Also because humans have existed in all sorts of environments from tundras to deserts for tens of thousands of years with stone-aged technology, including ice ages. The latest IPCC reports puts the upper limit of warming under 4°C.