In a previously unreported letter, a top lobbyist floated the idea of using emergency powers to keep aging coal plants open.

Justice Samuel A. Alito Jr. had faced pressure to recuse himself from the climate case because he owns stock in oil companies.

The first fall runs of chinook salmon since the project in California and Oregon was completed have surpassed researchers’ expectations.

Campaigners say plan marks notable shift away from oil and gas as previously pledges were only for carbon neutrality

An already busy Pacific hurricane season got a lot busier this week.

New report predicts a heavy toll from Nigeria to the US – and comes on top of existing impacts of the climate crisis

The ‘Godzilla-level’ phenomenon is supercharging the climate crisis and will heavily impact communities across the world

Leaders of AI firms are “on thin ice” with the public as energy costs rise, said Simon Stiell.

The young government of Nepal, a nation with a tiny carbon footprint, is seeking reparations from the world’s major economies as it bears the brunt of collapsing Himalayan glaciers.

The species, called a tilcayo, is smaller than a house cat and lives in the cloud forests of the Andes Mountains in Bolivia.

An internal memo reinterprets the law so that only the intentional killing of animals, not collateral harm, is illegal.

Rising oil prices helped push E.V. sales ahead of gas cars for the first time, even in a country that loves long road trips.

Generation of electricity is the second largest source of carbon dioxide and other planet-warming gases in the United States.

As global temperature increase shoots past 1.5 degrees Celsius, the vulnerable countries that fought for that Paris Agreement target face a brutal new reality.

Generation of electricity is the second largest source of carbon dioxide and other planet-warming gases in the United States.

Generation of electricity is the second largest source of carbon dioxide and other planet-warming gases in the United States.

Researchers at Anthropic, OpenAI, Meta and Google are increasingly trying to raise awareness about the risks of artificial intelligence.

There are now 325 kakapos in New Zealand, the largest population of the giant, flightless parrot species in decades, conservationists said.

Sweltering summer temperatures put last month on par with July 2023 for global warmth, scientists said. More records could be broken in the months ahead.

A recycling law coming into force now could change fashion.

Tiny fragments of plastic are in the air, land and water in the country, where the burning of trash is common.

Europe, the fastest warming continent, is hotter and drier than ever — and it is having an impact on the Grand Tour season

The proposed rule could strip federal protections from most U.S. wetlands, many of which help feed drinking water systems.

Carbon removal combined with emissions reduction is the only remaining pathway to avert catastrophic levels of warming, a new report warns.

The outdoor apparel maker joined environmental and Native American groups in challenging President Trump’s reduction of Bears Ears National Monument.

Three storms, spurred on by El Niño, are inching closer to Hawaii. Could one of them even affect California this weekend?

Rising sea temperatures mean reefs don’t have enough time to bounce back between intense heat waves, a new report warns.

The proposed land swap would allow easy access to the crown jewel of the national park system. Democrats and former Park Service officials are incensed.

A geologist reflects on the disaster and explains why rapid warming will make deadly glacial floods far more common.

The Indian Ocean accounts for about a fifth of global ocean area, with 90% of it reaching deeper than 1,000 meters (3,280 feet). Yet compared to the Pacific and Atlantic, its deep-sea biodiversity is…

Dr. Adam Kalkstein is suing the U. S. Military Academy, where he was a professor of geography and the only climate scientist, after being fired.

Some leaders of the health movement are challenging a pillar of the president’s energy agenda.

“Is he a prince in disguise?” Nature enthusiasts are flocking to Huntley Meadows Park in Alexandria to catch a glimpse of the unusual amphibian.

A memo reviewed by The Washington Post, circulated by U.S. diplomats, comes as negotiations over a plastics treaty reach a critical point.

Bad harvests and attacks on trade passages threaten to drive food prices higher.

Extreme temperatures and drought are adding to the stress on oak trees that have lived for hundreds of years and play a key role in the national imagination.

Towering woodlands in the West are being permanently replaced by tracts of spiky shrubs. Conditions “just aren’t normal anymore,” one researcher said.

At least a half-dozen federal agencies have taken action against the state that has led the nation in environmental protections.

The recurring climate phenomenon is poised this year to enter a new phase known as a super El Niño, exacerbating the effects of climate change.