"The largest red tide bloom seen in Florida in nearly a decade has killed thousands of fish in the Gulf of Mexico and may pose a greater health threat if it washes ashore as expected in the next two weeks, researchers said on Thursday."

"An email shows federal and provincial authorities allowed Canadian Natural Resources Limited, under investigation for a serious oilsands leak, to collect some evidence in the probe."

"The crisis may have eased in Toledo, but the toxic algae in Lake Erie that contaminated the water supply for 500,000 people in Ohio continues to plague lakes and rivers across the country, including here in Maryland."

"Toxic metal threatens marine life as it accumulates faster in shallow layers than in deep sea due to human activity"

"A federal judge in Tennessee has approved a $27.8 million settlement from the Tennessee Valley Authority to more than 800 people affected by a 2008 accident that unleashed a wave of toxic coal sludge, plaintiffs' lawyers said Tuesday."

"This year's low-oxygen "dead zone" along Louisiana coast covers 5,052 square miles, an area the size of the state of Connecticut but about 800 square miles less than the 2013 dead zone, according to a week-long survey released Monday."

"The U.S. Army Corps of Engineers announced in a legal settlement Monday that it will immediately notify the conservation group Columbia Riverkeeper, which filed the lawsuit, of any oil spills among its eight dams on the Columbia and Snake rivers in Oregon and Washington."

"The U.S. Environmental Protection Agency (EPA) will set up its microphones for an all day hearing Tuesday in Galena Park, a community on Houston’s east side in the heart of the enormous Houston Ship Channel refinery complex. It’s the second of two such hearings with the first held last month in a similar community in Los Angeles."

"Local residents are calling it an environmental disaster. A breach of the tailings pond on Mount Polley Mine sent five million cubic metres of toxic waste into Hazeltine Creek, Quesnel Lake and Polley Lake, with fears it could spread far and wide in the coming days."

"TOLEDO, Ohio — It took a serendipitous slug of toxins and the loss of drinking water for a half-million residents to bring home what scientists and government officials in this part of the country have been saying for years: Lake Erie is in trouble, and getting worse by the year."