Harmful algae blooms have been rapidly producing in a place previously too cold to host the toxin: the Arctic.

Crystal Lake's public beach will remain closed to swimmers after water samples confirmed elevated levels of cyanobacteria, Manchester health officials said Thursday. The toxic algae bloom was first ...

The blooms have become an annual problem in the Great Lakes. DNA studies show what’s growing there and why it’s dangerous.

"If our lake is in danger, then our livelihood is in danger," said a local business owner who is raising funds and awareness.

CONCORD, N.H. — Bob Manley is waiting for just the right day. He’ll slip his scull — a long, slim rowing shell — into the water and row 21 miles clear across Lake Winnipesaukee, from one ...

ENFIELD, N.H. (WCAX) - Swimmers are being urged to take caution at a popular lake in the Upper Valley after the year’s first cyanobacteria bloom. The New Hampshire Department of Environmental ...

A large number of lakes in the Republic could experience the same harmful algal bloom events that have caused serious environmental problems with waters in Lough Neagh in the North, the State’s ...

Arizona State University is working on a harmful algal bloom monitoring program on the lake with federal and state partners, Weiss said. "But also, this is part of the Colorado River crisis.

A blue-green algae has emerged on Lake Norman, prompting warnings from state health officials to avoid the water where spotted. Algal blooms have lingered since Monday “at multiple locations ...

To improve water quality and prevent harmful algae growth, a nanobubble system is being installed in Killarney Lake in Manitoba. The pilot project uses technology that infuses water with ultra ...