David Gelles

Despite endorsing a transition away from fossil fuels last year, Saudi officials have since worked to undermine it in at least five U.N. forums, diplomats said.

By Lisa Friedman

Senior ministers are arriving in an effort to break a deadlock over the summit’s main goal: funding to help lower-income countries hit hard by global warming.

By David Gelles and Brad Plumer

The U.N. climate summit in Azerbaijan has cleared the way for aid to flow when lower-income countries are hit.

By David Gelles

American officials are seeking to assure the world that U.S. climate action won’t end with the return of Donald Trump as president.

By David Gelles

Growing worldwide energy demand and other factors have shifted the calculus, but hurdles still lie ahead.

By Brad Plumer

Negotiators agree that trillions are needed to help lower-income countries adapt and cope, but not on who should pay.

By David Gelles and Brad Plumer

At the U.N. climate conference in Azerbaijan, world leaders are gathered in a petrostate to discuss the uncertain future of global climate policy.

By David Gelles

Negotiators at the summit in Azerbaijan fear that the return of Donald Trump will sap momentum for global climate action.

By Brad Plumer and David Gelles

As the world gathers for U.N. climate negotiations in Azerbaijan next week, here’s what we will be watching.

By David Gelles

Diplomats and leaders from around the world are gathering for annual climate negotiations. Here’s what they’re all about and what Donald Trump’s victory means for the meeting.

By David Gelles

The head of the World Bank on what comes next after the U.S. election.

By David Gelles

As the nation heads to the polls, here’s a guide to understanding the biggest climate and environmental issues at stake.

By David Gelles

The former president says he wants “clean air and clean water,” but he has rolled back environmental rules and dismissed the scientific consensus on climate change.

By David Gelles

Here’s the story of Squilla, a rare North Atlantic right whale mother, and her firstborn. To help their species continue, they’d have to navigate an increasingly dangerous ocean.

By Catrin Einhorn

Mr. Gates said in a statement to The Times that “this election is different,” reflecting a significant change in his political strategy.

By Theodore Schleifer

Big tech companies say A.I. can help solve climate change, even as it’s driving up their emissions and raising doubts about their climate goals.

By David Gelles

Millions of Americans have moved to the Sunshine State over the last several decades, only to see Florida’s future collide with climate change.

By David Gelles

In a new weekly feature of our Climate Forward newsletter, we’re covering the vast amount of investment, ingenuity and scientific expertise that are going toward stopping climate change.

By David Gelles

In our new weekly series, we’re covering the vast amount of investment, ingenuity and scientific expertise going toward stopping climate change.

By David Gelles

The Times hosted leaders and policymakers to talk about growing threats of climate change, and spoke with the C.E.O. of Occidental Petroleum.

By David Gelles

Around the country, people with a deep distrust of government want to preemptively ban the use of aerosols to reduce heat from the sun.

By Christopher Flavelle

Some restless entrepreneurs are releasing pollutants in the sky to try to cool the planet.

By David Gelles and Ian C. Bates

Solutions to the problem of climate change have never been more clear. But the scale of the problem keeps getting bigger.

By David Gelles

The lawsuit, seeking ‘multiple billions of dollars,’ opens a new front in the legal battles with oil and gas companies over climate and environmental issues.

By Karen Zraick and David Gelles

As climate change continues unabated, the goal is to examine technologies that could artificially cool the Earth “responsibly and ethically.”

By Christopher Flavelle and David Gelles

This was featured in live coverage.

By David Gelles

Here’s what the Times climate team would ask Harris and Trump about climate change, energy policy and the environment.

By David Gelles

In one of North America’s most stunning mountain ranges, melting glaciers and warmer temperatures are raising fears of ecological tipping points.

By David Gelles

In another year of record-breaking temperatures, Democrats are faced with the challenge of making climate change resonate with voters.

By David Gelles

Outside of the presidential election, a number of down-ballot races, including Senate and state contests, could have an impact on climate policy.

By David Gelles

The region faces a confluence of factors, including the fastest sea level rise in the country, increasingly humid temperatures and extreme rainfall.

By David Gelles

Critics say even researching the idea is dangerous.

By David Gelles

David Keith wants to spray a pollutant into the sky to block some sunlight. He says the benefits would outweigh the danger.

By David Gelles

Twice this week, global temperatures broke records, but scientists are more concerned about a longer-term pattern of hotter weather.

By David Gelles

Reed Timmer streams his pursuits of violent weather to millions of followers on social media, inspiring one of the leads in the new film “Twisters.”

By David Gelles

The soaring electricity demands of data centers and A.I. are straining the grid in some areas, pushing up emissions and slowing the energy transition.

By David Gelles

Here’s how the end of the Chevron doctrine could affect climate regulation.

By David Gelles and Manuela Andreoni

The state agreed to take steps to cut greenhouse gas emissions from transportation. It’s the latest of several victories for youth-led climate lawsuits.

By David Gelles

On-air meteorologists have become a target in the culture wars as they report on the effects of climate change.

By David Gelles

The Supreme Court may soon decide the fate of dozens of cases brought by cities and states that seek to hold fossil fuel companies accountable.

By David Gelles

Global carbon dioxide emissions might have already peaked, according to new estimates, signaling a potentially monumental shift.

By David Gelles

The president wants to shift America’s car fleet toward electric vehicles, but not at the expense of American jobs or national security.

By Jim Tankersley

The president’s signature 2022 climate law has sparked a rapid clean energy boom but its political impact is a lot less clear.

By David Gelles

The Biden administration is betting that new China tariffs will be politically popular, even if they could slow the transition from fossil fuels.

By Jim Tankersley and David Gelles

How to reconcile two new reports that seem to tell very different stories about the state of climate change.

By David Gelles

Is the world’s climate close to a tipping point?

By Katrin Bennhold, David Gelles, Raymond Zhong, Carlos Prieto, Michael Simon Johnson, Alex Stern, Diana Nguyen, Devon Taylor, Rowan Niemisto, Marion Lozano, Dan Powell and Alyssa Moxley

How a group of local activists saved the ‘Yosemite of South America’ in the unlikeliest of deals.

By David Gelles

A decade-long battle between a wealthy industrialist and a band of activists led to a surprising $63 million transaction.

By David Gelles

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

By David Gelles and Manuela Andreoni

Why atmospheric concentrations hit record levels last year.

By David Gelles

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.

By Isabella Kwai and Emma Bubola

Ambitious projects are trying to engineer the atmosphere.

By David Gelles

Blocking solar rays. Sucking carbon dioxide from the atmosphere. Ideas that sound like science fiction are now starting to become reality, raising concerns about safety.

By David Gelles

E.V.s have become part of the political culture wars

By David Gelles

A new book argues that short-term profit incentives can deliver long-term changes to benefit the climate.

By David Gelles

Adam Met wants to make it easier to build wind and solar projects.

By David Gelles

The rules, designed to inform investors of business risks from climate change, were rolled back amid opposition from the G.O.P., fossil fuel producers, farmers and others.

By Hiroko Tabuchi, Ephrat Livni and David Gelles

The S.E.C. was the target of intense corporate lobbying and a backlash from Republicans.

By David Gelles

The lawsuit says the meatpacking company has made a series of misleading statements about its environmental efforts.

By David Gelles and Manuela Andreoni

“It’s like an omen of the future.”

By David Gelles