Friday the 13th falls on a Wednesday this month, and offers us this observation:
There's still much that remains unknown about the [Greenland] ice sheet, which at roughly 650,000 square miles is more than twice the size of Texas. The sheet, up to two miles thick, contains enough ice that, if it all melted, would raise oceans around the world by 24 feet.
Can you swim? Not a problem for you or your kids, but what about their kids?