Here is a thing I definitely would not have understood without this animation.

Reuters explains the results of this NASA study in words, which aren’t nearly as adequate.

[T]hick, perennial Arctic sea ice was being replaced by a thinner and saltier ice that releases bromine into the air when it interacts with sunlight and cold […]

That in turn triggers a chemical reaction called a “bromine explosion” that turns gaseous mercury in the atmosphere into a toxic pollutant that falls on snow, land and ice and can accumulate in fish.

So melting sea ice is leading to inedible sea creatures and, possibly, random celebrity meltdowns. Way to hit us where it hurts, climate change.