Unregulated, agricultural ammonia threatens national parks' ecology
Thursday, October 10, 2013 - 15:30
in Earth & Climate
Thirty-eight U.S. national parks are experiencing "accidental fertilization" at or above a critical threshold for ecological damage, according to a study published in the journal Atmospheric Chemistry and Physics and led by Harvard University researchers. Unless significant controls on ammonia emissions are introduced at a national level, they say, little improvement is likely between now and 2050.