Much of the United States was in the icy grip of an unprecedented winter storm Monday as frigid Arctic air sent temperatures plunging, forcing hundreds of flight cancellations, making driving hazardous and leaving millions without power.

Fallout from a devastating flash flood in a remote north Indian valley hit the capital New Delhi more than 500 kilometers downstream on Monday, when water supplies were cut to tens of thousands of residents.

Israeli environmentalists are warning that a UAE-Israeli oil pipeline deal threatens unique Red Sea coral reefs and could lead to "the next ecological disaster." 

An Indian climate activist has been arrested after she allegedly helped create a guide to the anti-government farmer protests that was tweeted by environmentalist Greta Thunberg.

The French government has decided to cancel a planned expansion of the country's biggest airport, Paris's Charles de Gaulle, a minister said in remarks published Thursday.

Moscow was bracing Wednesday for record snowfalls over the weekend, as weather experts predicted a record-breaking "snow apocalypse" in the Russian capital. 

The German government is set to unveil legislation on Wednesday to halt a dramatic decline in insect populations, but farmers are up in arms over measures they say threaten their livelihoods.

Fossil fuel pollution caused more than eight million premature deaths in 2018, accounting for nearly 20 percent of adult mortality worldwide, researchers reported Tuesday. 

The 2020-2021 La Nina phenomenon has passed its peak, the UN weather agency said Tuesday, but its impact on temperatures, rain and storm patterns is set to continue.

A whistle turned into a roar of water that trapped a dozen men in a Himalayan tunnel after a glacier burst in northern India, but Rajesh Kumar lived to tell the tale.