It just snowed all over the northeastern United States. And it's cold. Really, really cold.
That's because it's winter.
Climate change deniers have been having a field day since early January's polar vortex, during which their contribution to public discourse was similar to Congressman John Fleming's tweet which read, "Global warming isn't so warm these days."
It's hard to go up against such ironclad logic. So if you're going to try to convince the climate skeptics that we're destroying our planet, you'll need some really convincing stuff.
Enter NASA, which has just released this 14-second, devastating visualization of global warming over the past six decades.
Looks bad? You have no idea how bad it is. Learn more with GlobalPost's year-long investigation into climate change, Calamity Calling.