Scientific studies on nine major waterways reveal an 'alarming' pollution by small particles. For the first time, a bacterium ...

The Tijuana River, which spans 120 miles across California and Baja California in Mexico, is facing the severe threat of pollution, according to American Rivers. "This region ... has been plagued ...

Montana’s environmental regulator has denied a petition to designate the Big Hole River as impaired by nitrogen and phosphorus, throwing a wrench in environmentalists’ efforts to put the blue-ribbon ...

American Rivers ranks the Tijuana River No. 2 on its list of most endangered rivers. Advocates are urging the U.S. and Mexico ...

The water has been classified under Class E, with a dissolved oxygen value of 2.3mg/L and a total coliform bacteria level at ...