Scientists observe reduction in emissions of banned ozone-depleting chemical after unexpected spike.

The record shows ancient temperature variations coinciding with shifts in the planet’s biodiversity.

New design could speed reaction rates in electrochemical systems for pulling carbon out of power plant emissions.

Researchers identify a mechanism by which small particles in the atmosphere can generate more frequent thunderstorms.

New study suggests waters will become more turbulent as Arctic loses summertime ice.

Leakage from frozen layers was a puzzle, but a new study shows how the potent greenhouse gas breaks through icy barriers.

Study suggests sea ice blocks the flow of carbon both into and out of the ocean, in roughly equal measure.

Findings also suggest exoplanets lying within habitable zones may be susceptible to ice ages.

Researchers design an effective treatment for both exhaust and ambient air.

New model answers longstanding question of how these sudden flows happen; may expand understanding of Antarctic ice sheets.