Harmful algal blooms pose growing risks to freshwater ecosystems, drinking water security, and public health. Yet despite their dramatic appearance at the water surface, the earliest stages of these ...

Green, murky water can signal more than an eyesore. Certain blooms raise safety concerns for swimmers, pets, and homeowners ...

Lake Norman is looking more colorful these days. Bright green, deep red and milky blue algae is blooming in northern parts of the lake — but these bright colors don’t bring good news. More than 80 ...

On clear days in Hartbeespoort, South Africa, satellite images often reveal a reservoir with shades of deep blue interrupted ...

Microscopic algae in the ocean generate half the oxygen we breathe. But off South Australia's coast, these same organisms have unleashed a toxic bloom that's closed beaches, shut down oyster farms and ...

PITTSFIELD — For the second time this year, the city is urging residents to stay out of Pontoosuc Lake due to a blue-green algae bloom that poses health dangers to humans and animals. Mayor Peter ...

An underwater bloom of toxic algae has wreaked havoc off the coast of South Australia since mid-March 2025. After eight months, this harmful algal bloom is the longest and one of the most ...

Snow isn't always white; algae can make it look green, red, or orange, and scientists are trying to understand how and why these colorful patches appear.

A flock of brown pelicans waddled back into the wild on Wednesday morning, survivors of Southern California’s latest toxic algal bloom. This year’s bloom was the deadliest such event since 2015, when ...

"The algae can cause rashes, stomach cramps, nausea, diarrhea and vomiting." All 21 of Mississippi's beaches have been shuttered for swimming due to the presence of toxic algae. The Mississippi ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. For marine biologists, dolphins are often viewed as sentinel species ...

SOUTHWICK, Mass. (WWLP) – The Southwick Police Department has issued an advisory due to a cyanobacteria bloom observed on Congamond Lakes. On Friday, the police stated that the presence of blue-green ...