Last year, Lake Tahoe was visited by five times as many people as Yosemite. Yet it does not enjoy the same protections as a Naitonal Park. As a result, Tahoe has lost a third of its renowned transparency in the past three decades, and water quality continues to decline. William Albright reports from Nevada.
Summer has arrived and frugal-minded, ecology-conscious vacationers are foregoing traditional amusement parks for the real thing: national parks. But their increasing numbers are wearing on the parks’ resources and increasing pollution and traffic in the fragile park environments. Betsy Bayha reports on the effects on one of America’s most famous and most vulnerable national parks: […]