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.

Scientists have answers about the strange green snow that people in the U.S.A have recently spotted that seems to be like green emeralds falling from the sky.

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

OMAHA, Neb. (WOWT) - Every summer it blooms, just like it has for two billion years. Blue-green algae is a form of cyanobacteria and is an organism, but not a plant. And when the conditions are ripe..

A number of Minnesota cities have reported blue-green algae blooms this summer, causing the temporary closing of some beaches. Blue-green algae is bacteria that can be toxic for both humans and pets. ...

MADISON (WKOW) -- It's peak bloom season for blue-green algae, and the Wisconsin Department of Natural Resources is cautioning beachgoers against its harmful effects to humans and pets. When ...

LAKE GENEVA, Wis. (WLS) -- Those looking to take a dip in Lake Geneva, Wisconsin before summer ends might be disappointed. Wisconsin health officials found pockets of blue-green algae "blooms" in the ...

The Wisconsin DNR listed Green Lake as an impaired body of water in 2014 as a result of high phosphorous, which fuels algae blooms. Sources of pollution include runoff from farms, livestock, yard ...

OKALOOSA COUNTY, Fla. (WKRG) — The presence of blue-green algae in some Destin lakes has prompted Okaloosa County health officials to issue an advisory urging residents to use caution around the water ...