We're Still Losing Ice at the Poles

One of the key indicators and consequences of global warming is ice loss at the Earth's poles. As the planet warms, on average and over time, every summer more ice melts. It refreezes in the winter, but again as temperatures rise, in general we'll see less ice at any given time as compared to the year before. The situation for the two poles is different. In the north the Arctic ice floats on the ocean, and on the south the Antarctic ice is over land and sea. This means that they way they melt --...