Cold Chills Global Warming Expedition: "An expedition designed to show how global warming is heating the Arctic had to be called off after one of the explorers got frostbite, thanks to incredibly frigid temperatures that got as low as 100 degrees below zero.

Explorers Ann Bancroft and Liv Arnesen planned to make a 530-mile journey on foot across the Arctic Ocean, but they had to call off the trek after Arnesen suffered frostbite in three of her toes, and extreme cold temperatures drained the batteries in some of their electronic equipment." Read on.