Earlier quoted context omitted.
> He's pretty sure that human civilization will be extinct this century. > There is no scenario where climate change leads to human extinction. He was talking about the human CIVILIZATION...
You are right, but "human civilization will be extinct" is an awkward phrase. Human extinction via climate change is off the table. The end of human civilization? Depends on what one means by it. If it means we'll go back to being hunter gatherers it's ridiculous. Some civilizational wide regression is not impossible, but even the direst IUPAC scenario projects only a one digit drop in global GDP (of course, that's t…
I don't think IUPAC (International Union of Pure and Applied Chemistry) has come out with views on impact of global warming :)