08 Sep 2025
Volunteers remove 5.8 million purple sea urchins to restore California kelp forests
Photo by Robert Reid A massive volunteer-led effort to restore California’s devastated kelp forests has achieved remarkable success, with 5.8 million purple sea urchins removed from coastal waters and kelp canopy coverage increasing by 20-50% in restoration sites. The unprecedented community-driven intervention has begun reversing a decade-long ecological crisis that saw purple sea urchin populations explode […]