Hundreds of millions of gallons of sewage waste has infiltrated the Potomac River, sparking conversation about America's infrastructure.

Mary, Mary quite contrary, how does the algae grow? With phosphorus, and nitrogen — the nutrients all in a row.

Get answers about how the Potomac River is being cleaned up after more than 200 million gallons of sewage spilled in it more ...

Removing weirs and other obstacles over the past 50 years allows salmon an easier journey to their spawning grounds ...

Porkchop, a three-flippered sea turtle, is back in the wild after a year of rehabilitation, a hopeful moment amid ongoing ...

The St. Johns River Water Management District seeks public input on its multi-million dollar plan to restore the Indian River ...

A harmful algal bloom known as a red tide is causing the mass deaths of crayfish and other ocean life on parts of South Africa's west coast.

Health officials in Hardee County are urging locals to stay clear of the Peace River near Lake Branch Road following the discovery of harmful blue-green algae. The Florida Department of Health in ...

A D.C. utility had been working for weeks to repair a collapsed sewer line when the president blamed Maryland’s governor for ...

A massive algae bloom stretches for miles in the Caloosahatchee with experts IDing a strain linked to grave illness. Drought, pollution likely to blame.

A toxic algae bloom in the Caloosahatchee River has dissipated for the second time in less than a month. Cyanobacteria, also known as blue-green algae, can produce toxins harmful to the liver and have ...