This is one of the coolest 30-second videos I’ve seen. Coolest, and scariest. Literally coolest.
From the description, by Youtube user Revkin:
Ignatius Rigor, who studies Arctic ice and climate at the University of Washington, has created an animation showing how the oldest thickest sea ice has been progressively flushed from the Arctic Ocean over the last two decades.
More background here:
Caveat: I don’t know what the source of the data is for this animation, whether it is a model or based on real satellite observations. That said:
And a picture of snow, for good measure.