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

The risk of harmful algal blooms can be reduced. The biggest drivers of the increase are farm fertilizer and climate change.

Harmful, blue-green algae blooms have been appearing on bodies of water nationwide, just as you may be drawn to go swimming or boating. Here’s what you should know.

The public-private pilot aims to improve the detection and identification of harmful algae blooms and support water safety across Finland using cutti ...