kelp | KALW



On this edition of Your Call’s One Planet Series, we'll rebroadcast our conversation with environmental scientist Laura Rogers-Bennett about the alarming decline of underwater kelp forests and the explosion of kelp eating purple sea urchins off of California's coast.

San Francisco’s volunteer seaweed fighters

Nov 8, 2012
Marianne Kavanagh

Carliane Johnson is about to dive into a narrow channel of water, just about five or six feet between the dock and the seawall. She won’t have to dive deep to find what she’s looking for.

“The population can explode all of a sudden, and we’ll be pulling a lot,” she says. “Some can be six or seven feet long. It’s a lot of plant material, and I just bring it to the docks, someone grabs it, and I go back and look for more.”