Researcher Tobie Bloom wears a protective suit before testing water in the Tijuana River in San Diego County. (Luke Johnson / Los Angeles Times) New research backs up the concerns of people who live ...

Pollution has damaged many areas in the United States, but one Ohio river proves that time and hard work can help reverse the negative effects. The Cuyahoga River in Ohio was once so polluted by the ...

Billions of gallons of sewage have entered San Diego communities through the Tijuana River. Local leaders are speeding up plans to clean up the river and protect public health.

City and county leaders Wednesday unveiled warning signs at several "hot spots" in the South Bay where high levels of hydrogen sulfide gas from the Tijuana River pollution crisis have been recorded.

About a mile from Cleveland’s Lake Erie shore, in a stretch of water once among America’s most polluted, a team of conservationists just released a few dozen lake sturgeon into the Cuyahoga River.

The Danube River tells a devastating tale of environmental degradation spanning multiple decades. At 2850 km, the second longest river in Europe and the most international river in the world with 19 ...

Firefighters stand on a bridge over the Cuyahoga River to spray water on the tug Arizona as a fire, started in an oil slick on the river, engulfs docks in Cleveland on Nov. 1, 1952. About a mile from ...