Ultimate tourist experience could threaten the Grand Canyon

Aired: 4/7/2015 | 0:04:58 | Clip
The Grand Canyon, known as one of the world’s natural wonders, may be threatened by commercial development and mining, according to a new report. Jeffrey Brown talks to Robert Irvin of American Rivers about the most endangered rivers of 2015 and what put the Colorado River on the top of the list.

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