NASA-2010

2010 tied the record. Deny this:

2010 featured prodigious snowstorms that broke seasonal records in the United States and Europe; a record-shattering summer heat wave that scorched Russia; strong floods that drove people from their homes in places like Pakistan, Australia, California and Tennessee; a severe die-off of coral reefs; and a continuation in the global trend of a warming climate.

And Brisbane is now an underwater war zone and Brazil is grappling with mudslides of historic proportions. Ezra Klein warns:

There is no doubt, at this point, that we are leaving a warming world for the next generation. And this is not merely like leaving health-care reform undone, or infrastructure unbuilt: Those problems might persist, but they are not much harder to solve in 2020 than in 2010, or 1990. Climate change, however, doesn't merely persist. It accelerates. 

Unpredictably.

(Chart via Climate Progress)