Image may be NSFW.
Clik here to view.
America is home to some of the world's most stunning natural wonders, but many of these sights are increasingly under threat from climate change and pollution.
While some are slowly experiencing change, others are deteriorating at a more rapid rate.
We've put together a list 0f 19 incredible American natural sights that travelers should see before it's too late, from the majestic Yellowstone National Park to Hawaii's oldest island, Kauai.
SEE ALSO: The most breathtaking natural wonder in every state
DON'T FORGET: Follow Business Insider's lifestyle page on Facebook!
The largest subtropical wilderness in the continental US, Florida’s Everglades National Park is home to alligators, crocodiles, endangered leatherback turtles, and more than 350 species of birds. Unfortunately, both urban development and pollution from farms have destroyed more than half of the park, which is on UNESCO's World Heritage in Danger list.
Image may be NSFW.Clik here to view.

Click here to learn more about Everglades National Park »
Source: The Weather Channel
With over 700 miles of trails, Montana’s Glacier National Park is a paradise for hikers and those seeking up-close encounters with nature. Once home to more than 150 glaciers, the park now has fewer than 25 and is potentially at risk of losing all of its glaciers in the next 15 years thanks to climate change.
Image may be NSFW.Clik here to view.

Click here to learn more about Glacier National Park »
Source: Time
The oldest national park in America, Yellowstone is famous for its array of wildlife and its stunning geysers, like Old Faithful. The park is suffering due to infrastructure problems, air pollution, and the decline of its white bark pines, which have been attacked by growing numbers of beetles.
Image may be NSFW.Clik here to view.

Click here to learn more about Yellowstone National Park »
Source: AOL Travel
See the rest of the story at Business Insider