Every step we take, whether across a grassy park or down a city sidewalk, below our feet is an ecosystem teeming with life.

Foothill oak woodlands are among the most familiar ecosystems in California.

The decline in gasoline has implications for both local air quality and climate change.

Scripps Oceanography climate scientists ponder what episode tells us about global warming.

Scientists detect human waste contamination in the mudslide debris used to enrich Goleta Beach.

Tuning in to the signature 'whistles' of dolphins could prove a game-changer in being able to accurately track the movements of this much-loved protected species.

Around the world, there are pools of water filled with nuclear waste waiting for their final resting place. 

Thanks to a wet summer, water levels rose in this ephemeral lake in Western Australia.

Powerful thunderstorms moving through eastern Texas and western Louisiana spawned several tornadoes, including some that caused major damage.

Researchers using vegetation data to explain moose population dynamics run into a hidden variable and a possible signature of history.