Slip Sliding Away
The Earth’s glaciers are a stunning sight, but if they’re on your travel bucket list, the clock is ticking. In nearly all cases, they're melting at an alarming rate because of climate change. Up to half of the world's mountain glaciers could disappear by 2100 even if the most ambitious climate change goals are met, according to a study that uses satellite data to model climate change scenarios. The world got a preview of what that might look like this past weekend when a "glacial outburst" prompted evacuations and sent buildings tumbling in Juneau, Alaska. Here are some of the world's most beautiful and most visited glaciers, which are worth seeing before they potentially disappear forever.