Fastest Disappearing Natural Wonders
Glacier National Park
In 1850, Glacier National Park was home to 150 glaciers. Today, there are only 26, and the future looks grim: here, a warmer climate may encourage plants to bloom too early. According to the National Wildlife Federation, pollinating birds may arrive too late for the insects and plants on which they rely, throwing the whole cycle out of sync.
How to See It Now: Bike the famous Going-to-the-Sun Road and raft the Flathead River, once used by fur traders, secure in the knowledge that you’ll never be crowded out at the campfire come dinnertime. Go with Austin-Lehman, where the guest-to-guide ratio is never more than 6-to-1; the company is also a member of Sustainable Travel International.