A new report
from the Natural Resources Defense Council (NRDC) and The Rocky Mountain Climate Organization describes the threats
posed to 25 national parks and other U.S. sites by global warming.
The report, titled "National Parks in Peril," details 11 different risks facing parks and other spaces, including increased flooding, intolerable heat, and worsening air pollution, and calls "human disruption of the climate" the "greatest threat ever to our national parks."
"We showed leadership in creating the park system. And now we need to show leadership as one of the world's two biggest emitters of greenhouse gases," said
Theo Spencer, a senior advocate for the NRDC.