This week, we look at the ice sheets of Antarctica. Like so much of the world's ice, a lot of it is melting away and shrinking. But there are certain places in Antarctica that the ice is actually increasing. How? Why? Better ask a scientist.
Or how about three? Son Nghiem, Eric Larour and Ala Khazendar give us the scoop on how scientists gather this crucial data, and what it's telling them about our changing climate.