Hyperbole

Hyperbole: An exaggerated statement or claim not meant to be taken literally.

"Even with a deal to stop the current rate of greenhouse gas emissions, scientists warn, the world will become increasingly unpleasant. Without a deal, they say, the world could eventually become uninhabitable for humans."
http://www.nytimes.com/2014/12/01/world/climate-talks.html?emc=edit_th_20141201&nl=todaysheadlines&nlid=57930525

Note, that apparently the 2 degree C "guardrail is somewhere in the rear view mirror, but i digress)
Really? "uninhabitable"? That is a poor word to use when communicationg about a subject when many view the scientists as alarmists anyway. Assuming for the sake of discussion that future probable water war(s) do not become a general nuclear exchange(s), we should not underestimate our specie's abilities over the long run. Paleogeneticists tell us that the entire human population was probably knocked back to Africa and somewhere under 10,000 individuals when the last super-volcano (Tuba +- 70,000 bce) errupted. That was no cake walk folks. This will not be either, and the smart money is on around 8 degrees C by 2100 rather than the 2 degrees C  3.6 degrees C mentioned in the NYT article. All hands on deck? yes. Extinction? not likely, depending on the breaks.

And now for something completely different.
If you are a fan of post nuclear war dystopian films, have you seen the one that almost ended the career of director Richard Lester?