What causes algal blooms to become toxic?

The disastrous 2015-16 Dungeness crab season, delayed and shortened by an unprecedented bloom of toxic algae, is a bitter memory for the West Coast fishing industry. The culprit was domoic acid, a potent neurotoxin produced ...

Algae bloom may be behind mysterious California deaths

On a remote trail in California's Sierra National Forest called the Devil's Gulch, a family of three and their dog were recently found dead. Authorities were at a loss to explain what happened.

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