Marine heat waves that seemed extreme just a decade ago will become commonplace by the end of this century in waters favored ...

Bringing back sunflower sea stars, which are functionally extinct in California, could help restore kelp forests off the ...

Across the Southern Hemisphere, patches of seaweed are getting sick. Scientists have found strange yellow growths called galls on kelp in Latin America, southern Africa, and Australasia. The disease ...

and vast areas of the coast where kelp once thrived are now "urchin barrens," the seafloor carpeted with purple sea urchins and little else. This has occurred even in Monterey Bay, which hosts a ...