The fish die-off, of primarily involving crappies, began during the first week of June, following a late-May heat wave.

Coastal waters from San Francisco to Baja California are experiencing a record-breaking marine heat wave. A marine heat wave is a prolonged period of unusually warm ocean temperatures that can disrupt ...

Most people have experienced a heat wave on land. But heat waves can strike in the ocean too. And as the planet continues to ...

Hottest. Earliest. Most extreme. California’s meteorologists and oceanographers keep dropping new superlatives about the temperatures in 2026. “There’s a bunch of claims circulating, some viral social ...