Slate: Earth's polar regions are in the midst of a stunning transformation. As global warming accelerates, evidence of change is perhaps most obvious in our planet's ice.
More than a decade ago, scientists watched in awe as Antarctica's Larsen B Ice Shelf shattered almost completely in just six weeks. No one had ever seen such a large mass of ice vanish so quickly.
Now, a new study from NASA, released this week, predicts that what remains of Larsen B will be totally gone in less than five years. Since...