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Byline: Justin Gillis and Hal Harvey Three months after taking office as America's 46th president, Joe Biden made a solemn pledge to the world: He declared that the United States, [...]

Byline: Justin Gillis The jawboning has been going on for nearly a third of a century. It started back in 1992. Delegates from around the world - including a hesitant [...]

The jawboning has been going on for nearly a third of a century. It started back in 1992. Delegates from around the world -- including a hesitant American president, George [...]

Byline: Justin Gillis In Oregon, some residents are begging electric companies to shut off their power in high winds to prevent the lines from sparking dangerous fires. Power companies that [...]

A lobby is trying to block codes that save homeowners money and fight climate change. ''The Big One,'' screamed a giant all-caps headline on The Miami Herald's front page one [...]

Wind and solar are better bets for investors and the planet. As Americans suffer through immense wildfires, rising coastal flooding and an epic hurricane season, the nation's corporations want you [...]

Corruption scandals in Ohio and Illinois reveal an unsavory underside to the politics of energy. The billion-dollar bailout of one of Ohio's biggest utilities seemed suspicious from the start. It [...]

Byline: Justin Gillis and Heather Thompson With people hunkered down at home, cities should act quickly to find a better balance between cars and pedestrians and cyclists. Since cities came [...]

Governors in Northeast and Mid-Atlantic States are pondering that question. A plan is under development in about a dozen Northeast and Mid-Atlantic States to tackle the country's biggest source of [...]

It's a huge undertaking to slow climate change, but we've done big things before. Decades of climate change foot-dragging are finally giving way to public demands for action. Around the [...]

Byline: Justin Gillis The most urgent imperative now is to turn our fear and frustration into votes. SAN FRANCISCO - Now we suffer the consequences. In Northern California, power was [...]

The most urgent imperative now is to turn our fear and frustration into votes. SAN FRANCISCO -- Now we suffer the consequences. In Northern California, power was cut to more [...]

Now we know. The Democratic Party establishment in Washington really believes it is going to get away with running another round of presidential primaries in which the climate crisis is [...]

OAKLAND, Calif. -- We have some good news that sounds like bad news: Your gas stove has to go. We know how you'll feel reading those words. We used to [...]

PARIS -- The angry graffiti have been blasted off the Arc de Triomphe with water jets, leaving unnaturally white patches scarring the base of France's national monument. The husks of [...]

Byline: JUSTIN GILLIS and HAL HARVEY SAN FRANCISCO -- At long last, a handful of political leaders are starting to set goals on greenhouse emissions that are consistent with the [...]

Byline: JUSTIN GILLIS SAN FRANCISCO -- This is a message, and a plea, for Gov. Jerry Brown of California. Please sign the bill. This is also a message for his [...]

The night before the day that would make him famous, James E. Hansen listened to a baseball game on the radio. But his mind kept wandering: What would he say [...]

Byline: JUSTIN GILLIS and HAL HARVEY Correction Appended SAN FRANCISCO -- We might be living through a new age of miracles. Last month, Los Angeles decided against adding lanes to [...]

SAN FRANCISCO -- We might be living through a new age of miracles. Last month, Los Angeles decided against adding lanes to a freeway, an unexpected move in a city [...]

From the day he walked into Congress as the nominee to head the Environmental Protection Agency, Scott Pruitt has been trying to foist a colossal lie on the American public. [...]

DENVER -- Imagine planning your next trip and finding that Delta was selling first-class seats for less than the cramped middle seats in the back of the plane. So you [...]

ON THE GREAT BARRIER REEF, off Australia -- After a plunge beneath the crystal-clear water to inspect a coral reef, Neal Cantin pulled off his mask and shook his head. [...]

Part 1 What Is Happening? 1. Climate change? Global warming? What do we call it? Both are accurate, but they mean different things. You can think of global warming as [...]

Part 3 1. Are there any realistic solutions to the problem? Yes, but change is happening too slowly. Society has put off action for so long that the risks are [...]

Byline: DAMIEN CAVE and JUSTIN GILLIS Correction Appended ON THE GREAT BARRIER REEF, off Australia -- After a plunge beneath the crystal-clear water to inspect a coral reef, Neal Cantin [...]

As Hurricane Harvey bore down on the Texas coast, few people in that state seemed to understand the nature of the looming danger. The bulletins warned of rain falling in [...]

Eclipse mania will peak on Monday, when millions of Americans will upend their lives in response to a scientific prediction. Friends of mine in Georgia plan to drive 70 miles [...]

For people in the southeastern United States, and especially in Florida, who feel that annoying tidal flooding has sneaked up on them in recent years, it turns out to be [...]

BUCK MEADOWS, Calif. -- With long strides, Chad T. Hanson plunged into a burned-out forest, his boots kicking up powdery ash. Blackened, lifeless trees stretched toward an azure sky. Dr. [...]

Byline: JUSTIN GILLIS BUCK MEADOWS, Calif. -- With long strides, Chad T. Hanson plunged into a burned-out forest, his boots kicking up powdery ash. Blackened, lifeless trees stretched toward an [...]

McMURDO STATION, Antarctica -- The American research station on the edge of this frozen continent may look like a mining camp in the wilderness, but it is actually one of [...]

Byline: JUSTIN GILLIS and JONATHAN CORUM McMURDO STATION, Antarctica -- The American research station on the edge of this frozen continent may look like a mining camp in the wilderness, [...]

A chunk of floating ice roughly the size of Delaware broke away from the Antarctic Peninsula this week, NASA confirmed on Wednesday, producing one of the largest icebergs ever recorded [...]

CAPE GRIM, Tasmania -- On the best days, the wind howling across this rugged promontory has not touched land for thousands of miles, and the arriving air seems as if [...]

Byline: JUSTIN GILLIS CAPE GRIM, Tasmania -- On the best days, the wind howling across this rugged promontory has not touched land for thousands of miles, and the arriving air [...]

Two years ago, Kansas repealed a law requiring that 20 percent of the state's electric power come from renewable sources by 2020, seemingly a step backward on energy in a [...]

Global warming caused by human emissions of greenhouse gases is having clear effects in the physical world: more heat waves, heavier rainstorms and higher sea levels, to cite a few. [...]

The United States, with its love of big cars, big houses and blasting air-conditioners, has contributed more than any other country to the atmospheric carbon dioxide that is scorching the [...]

Byline: JUSTIN GILLIS Global warming caused by human emissions of greenhouse gases is having clear effects in the physical world: more heat waves, heavier rainstorms and higher sea levels, to [...]

FROM THE AIR, the Ross Ice Shelf looks like a vast white plain extending to the horizon. Only at its edge does it become something more dramatic: a spectacular sheer [...]

MORE THAN 60 PERCENT of the freshwater on Earth is locked up in Antarctica's ice sheets. The risk is clear: Even a partial collapse of the ice has the potential [...]

ABOVE THE ROSS SEA, Antarctica -- Engines droned as a military cargo plane sliced through the frigid air, making straight for the world's largest chunk of floating ice. In the [...]

HOBART, TASMANIA -- John A. Church, a climate scientist, did not look or sound like a man who had recently been shoved out of a job. Speaking softly and downing [...]

SYDNEY, Australia -- The Great Barrier Reef in Australia has long been one of the world's most magnificent natural wonders, so enormous it can be seen from space, so beautiful [...]