The step follows an extraordinary move that requires utilities to reduce the levels of carcinogenic PFAS compounds in drinking water to near-zero. View full story...

Nearly 50 leaders and activists who worked with Mr. Kennedy at an environmental nonprofit group will run ads calling on him to “Honor our planet, drop out.” View full story...

The administration has blocked a proposed industrial road needed to mine copper in the middle of the state, and has banned oil drilling on 13 million acres in the North Slope. View full story...

Pakistani officials warned of more flooding and heavy rainfall next week, stoking fears of a particularly brutal monsoon season to come. View full story...

Development and groundwater pumping are causing land subsidence and heightening the risks of sea level rise. View full story...

As record heat enveloped the nation, the rate of emergency room visits increased compared with the previous five years, a sign of the major health risks of high temperatures. View full story...

It’s still unclear how the world will pay for developing nations to fight climate change. View full story...

Images of a saturated desert metropolis startled the world, prompting talk of cloud seeding, climate change and designing cities for intensified weather. View full story...

The measure elevates conservation in a number of ways, including by creating new leases for the restoration of degraded areas. View full story...

A mining company wants to build a 211-mile industrial road through Alaskan wilderness to reach a large copper deposit. The Interior Department says it would harm wildlife and communities. View full story...

The disaster, intensified by El Niño, is devastating communities across several countries, killing crops and livestock and sending food prices soaring. View full story...

Tunde Onakoya is trying to break a record for the longest chess marathon. And he’s playing his games in the open air in Manhattan. View full story...

The San Gabriel Mountains National Monument and the Berryessa Snow Mountain National Monument are expected to grow by a combined total of about 130,000 acres. View full story...

Clerics in Indonesia are issuing fatwas, retrofitting mosques and imploring congregants to help turn the tide against climate change. View full story...

Why atmospheric concentrations hit record levels last year. View full story...

And what would that mean for the climate? View full story...

The federal government is ordering the removal of PFAS, a class of chemicals that poses serious health risks, from drinking water systems across the country. View full story...

When traditional conservation fails, science is using “assisted evolution” to give vulnerable wildlife a chance. View full story...

Feral cats take a heavy toll on the world’s wildlife, especially Down Under. The solution? Smarter traps, sharpshooters, survival camp for prey species, and the “Felixer.” View full story...

First, fish off the Florida Keys started swimming in spirals or upside down. Then, endangered sawfish started dying. Scientists are racing to figure out why. View full story...

Rising sea temperatures around the planet have caused a bleaching event that is expected to be the most extensive on record. View full story...

From airlines to pork sellers, corporate brands face legal and regulatory challenges for misleading the public with lofty climate claims. View full story...

Mr. Gore spoke at a climate leadership conference hosted by his nonprofit organization. View full story...

To protect Australia’s iconic animals, scientists are experimenting with vaccine implants, probiotics, tree-planting drones and solar-powered tracking tags. View full story...

A rarely used technique to upgrade old power lines could play a big role in fixing one of the largest obstacles facing clean energy, two reports found. View full story...

A global survey found harmful levels even in water samples taken far from any obvious source of contamination. View full story...

The highly efficient devices are the darlings of the environmental movement. Here’s why. View full story...

For the first time since 1920, the government has raised the rates that companies pay. The fossil fuel industry says it will hurt the economy. View full story...

A public research institute in Brazil has proved a new shot protects against the disease, but can’t make it fast enough to stop the huge outbreak sweeping Latin America. View full story...

The fossil fuel industry says higher rates will harm the economy. The administration says they will pay for the environmental costs of drilling and mining. View full story...

Mr. Musk, the chief executive of Tesla, has turned off many people with polarizing remarks on social media, and it may be affecting the automaker’s sales. View full story...

The fate of Colombia’s rainforest may lay in the hands of a rebel group linked to drugs and illegal mining. View full story...

The country, along with India, is still building power stations that run on coal. Elsewhere, retirements of older plants have slowed. View full story...

What can fiction tell us about the apocalypse? Ayana Mathis finds unexpected hope in novels of crisis by Ling Ma, Jenny Offill and Jesmyn Ward. View full story...

The rule applies to a family of chemicals known as PFAS that are linked to serious health effects. Water utilities argue the cost is too great. View full story...

As they look to contain an increasingly aggressive China, the United States and Japan announced dozens of new agreements, including on military, economic, climate and space matters. View full story...

Department lawyers said in a brief that Enbridge, a Canadian company, “lacks any legal right” to operate its Line 5 pipeline on reservation territory. View full story...

There have been record temperatures every day for more than a year. Scientists are investigating what’s behind the extraordinary measurements. View full story...

Experts said it was the first time an international court determined that governments were legally obligated to meet their climate targets under human rights law. View full story...

Using European Central Bank lending data, researchers said there was not evidence that voluntary commitments were effective in reducing emissions. View full story...

The new regulation is aimed at reducing the risk of cancer for people who live close to plants emitting toxic chemicals. View full story...

From dolphins with Alzheimer’s to cranky traffic judges, writes Clayton Page Aldern, the whole planet is going berserk. View full story...

Volkswagen’s plant in Zwickau stopped producing Golfs and switched to electric vehicles, illuminating the risks and opportunities for factory towns and cities. View full story...

Rising temperatures in Antarctica are making meteorites sink out of view before researchers can collect them. View full story...

Last July, a recently divorced writer who had found solace in hiking took on a towering challenge: Mount Whitney, the highest peak in the lower 48 states. View full story...