Last year, 17 people died at the site, with nine involving search and rescue teams.
Developers want to build the 240-foot-high structure across the Little Colorado River about 6 miles upstream from the point where it meets the Colorado River.
"Climate change will force wild species in all national parks to adapt, often by migrating. The problem is that U.S. policies—especially under the Trump administration—are fragmenting connections between parks and other public lands that give natural systems better odds for survival."
UNESCO has identified 1092 sites worldwide for protection because of their cultural, historical or scientific value or other significance. Here are the ones in North America.
First Bears Ears, now the Grand Canyon.
The balloon reached an altitude of 18.7 minutes after 87 minutes.
Nearly a century after Woodrow Wilson established the NPS, it looks ahead to the next century.