Long a threat to southern Ontario lakes, climate change is allowing cyanobacteria — or blue-green algae — to thrive in even ...

A visible bloom of blue-green algae has been observed in Lake Apsey in Espanola, health officials say.

Public health officials are advising anglers and boaters to exercise caution after a popular fishing spot near Thunder Bay tested positive for blue-green algae last week. A slimy algae bloom ...

The city has posted an online warning that even while beaches are closed, people should avoid contact with the water because the toxins in it could make you sick.

The town of Stratford is warning people to be cautious of a recent harmful algae bloom in two of the town's ponds. Town officials have posted warning signs at Brewster and Longbrook ponds advising ...

Blue-green algae has been spotted in the north part of Spring Garden Lake, the Florida Department of Health in Volusia County stated in a warning issued Tuesday afternoon. The north end of Spring ...

Blue-green algae, which can produce toxins, have been spotted in Lake Monroe and Lake George, and the Florida Department of Health in Volusia County is warning people to take precautions. Lake Monroe ...