A supercell thunderstorm pelted a city center in Argentina a few years ago with hailstones so large scientists suggested a new category to describe them — gargantuan hail.

Along with the mild winter across much of the eastern United States and the return of something more like real winter in Alaska, here’s something else we can blame on the polar vortex: a rare “hole” in the ozone layer over the Arctic in February and March 2020.

For the past several weeks, much of the world has experienced a new normal: one with fewer cars on the road and more time spent at home.

As pollution levels drop worldwide amid stay-at-home orders, researchers consider what this might mean for the future.

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.

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.

The average picker now experiences 21 days each year when the daily heat index — a mix of air temperature and humidity — would exceed workplace safety standards.

A new study led by Loughborough University has revealed that lake burial of organic carbon has increased three-fold over the last 100 years in response to human disruption of global nutrient cycles.