California volunteer divers are taking part in a pilot project to crush purple urchins, which have contributed to the destruction of 96% of the state's bull kelp forests.

Divers fight to save California's kelp forests threatened by warming ocean waters by Associated Press on YouTube. CASPAR, Calif. -- A welding hammer strapped to her wrist, Joy Hollenback slipped ...

Giant kelp is the common name for Macrocystis pyrifera, a species of alga that grows into lush underwater forests along the coast of the northeastern Pacific Ocean, from Baja California north to ...

Scientists are protecting or expanding kelp forests in Baja California, Southern California, Oregon and Washington’s Puget Sound. Gina Contolini, ...

After purple urchins helped nearly wipe out 96% of California's iconic underwater bull kelp forests over a six-year span, biologists say they are seeing promising signs that efforts to save them ...

After purple urchins helped nearly wipe out 96% of California's iconic bull kelp forests over a six-year span, biologists say they are seeing promising signs that efforts to save them may be helping.

Scientists are protecting or expanding kelp forests in Baja California, Southern California, Oregon and Washington’s Puget Sound. Locally, Hughes is also restoring kelp at two sites in Mendocino ...

Bull kelp, a bulbous algae that forms a canopy over the water’s surface closer to shore, gilds the West Coast from Alaska to central California. Underwater forests of giant kelp — a different ...

Scientific diver Morgan Murphy-Cannella holds bull kelp with a dark patch of reproductive spores as she surveys a reforestation project, Friday, Sept. 29, 2023, near Caspar, Calif. Kelp forests ...

After a mass algal die-off in the Pacific, researchers used satellites, undergrads, artificial intelligence and children in tide pools to figure out what was lost—and how it might come back.