Marine mammal researchers are investigating how sea lions were affected by the longest toxic algal bloom on record off the coast of Southern California. Some sea lions are being released back into the wild.

A new study of kelp fossils from the coast of Washington state show that kelp forests, which host all manner of marine life, developed tens of millions of years ago.

Skidaway researcher, volunteers keep tabs on tiny organisms that can have a big effect on waterways

Last year saw higher algae levels in Lake Lanier and that's concerning environmentalists, but it might be temporary.