Warmer Waters Linked to Higher Levels of Shellfish Toxin

As the Earth warms up, you may want to lay off the shellfish: Warmer ocean waters are linked to increased — and possibly dangerous — levels of domoic acid, a toxin in shellfish and other marine animals that can make people sick, a new study finds. Researchers looked at more than two decades' worth of data, from 1991 to 2015, and compared ocean water conditions off the Oregon coast (using measures of climate variability such as the Pacific Decadal Oscillation (PDO), which looks at fac