Events

Waste dumped into the Tijuana River can travel seven times farther than expected before becoming airborne and polluting San Diego’s air, at least 20 miles from its source, according to new research.

New theory explains how species begin to diversify

For the first time, scientists have measured the microplastic pollution falling on the Sierra Nevada during snowstorms. They found significant amounts even in locations inaccessible by car or by foot.

Findings raise concerns about infection during early brain development