How fast is the Antarctic ice sheet breaking up and what is causing it?
Don Warthe, Winlaw, British Columbia, Canada A: The ice sheet isn’t breaking up. In fact, researchers haven’t yet been able to determine whether the total amount of ice in Antarctica is increasing or decreasing. Either way, it’s close to staying the same total amount as falling snow adds to the ice and melting ice reduces the total amount. You’ll find out what’s gonig on with Antarctica’s ice by going to our Understanding polar ice page.