Overwater mapping: the case of the disappearing kelp

In less than a decade, 90% of California’s kelp forests have disappeared. One team is mapping what’s left to figure out what to do next.

“If someone took out all the redwoods in California, then people would notice,” says Waz Hewerdine. “But because the kelp forests are mostly out of sight, a lot of people aren’t really aware of the extent of the problem.”

Hewerdine, a ‘citizen scientist,’ is working with a joint program of two non-profit organisations: The Nature Conservancy and The Greater Farallones Association.

The joint program aims to support kelp recovery: a process which has to start with mapping the kelp.

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