Yes, if no action is taken against climate change and our annual CO2 emissions rise because the living standard in India and China rises then collapse of civilization is very likely. Depending on our determination it is also possible for no human to survive climate change. 9°C warming might be far off but it certainly isn't impossible, thanks to feedback loops and ignorance.

The reality will probably look a bit more rosy if we get our act together and do manage to reduce CO2 emissions, at least I hope this will happen.