Trump’s Rollback of Auto Pollution Rules Shows Signs of Disarray


The White House, blindsided by a pact between California and four automakers, appears to be losing ground in its effort to prevent any more for joining the agreement.

As Wildfires Get Worse, Insurers Pull Back From Riskiest Areas


A growing number of Western homeowners are being dropped by their insurance companies, prompting warnings from officials and worries about what comes next.

How One Billionaire Could Keep Three Countries Hooked on Coal for Decades


The story of a mining project in Australia helps to explain why the world keeps burning coal despite the profound risk it poses to the future.

Greta Thunberg Sets Sail for U.N. Climate Talks


The 16-year-old climate activist is crossing the Atlantic to attend a United Nations climate summit. She refuses to fly because aviation has such an enormous carbon footprint.

Earth’s Food Supply Is Under Threat. These Fixes Would Go a Long Way.


The food production system accounts for up to a third of greenhouse gas emissions. But if agriculture is done right, experts say, it can actually be a climate change solution.

Fires in Amazon Rain Forest Have Surged This Year


More than 74,000 wildfires have been detected in the world’s largest rain forest this year, an 84 percent increase from the same period last year, Brazil’s space research center said.

What if We All Ate a Bit Less Meat?


Also this week, how an economic downturn could affect climate change.

At Edinburgh Festivals, Climate Awareness Comes at a Cost


International arts events are a platform to discuss the planet’s future. But traveling performers and visiting audiences arrive with their own environmental baggage.

Midway Through His Year, Our 52 Places Traveler Answers Readers’ Questions


Milestones lend themselves to reflection, so we took the opportunity to slow down and tap you, fellow travelers, for questions you might have about my journey.

The City Just Sweated Through Its 10th-Hottest July Ever


Tuesday: Last month, 26 of 31 days had temperatures that were above average.

Iceland Mourns Loss of a Glacier by Posting a Warning About Climate Change


Higher global temperatures are threatening glaciers, which cover 11 percent of Iceland and are prominent tourist attractions.

The Thick Gray Line: Forest Elephants Defend Against Climate Change


If the species is wiped out by poachers, Africa’s vast rain forest will lose 7 percent of its carbon storage ability, scientists estimate.

Scorched Portugal Turns to the Goat as a Low-Cost Firefighter


Portugal is using goats to clear the underbrush that fuels wildfires in hard to reach places and abandoned lands. If only it can find shepherds to tend them.

NOAA Data Confirms July Was Hottest Month Ever Recorded


Data from federal researchers confirmed that July was the hottest month on record, edging out the previous record-holder, July 2016.

Why Is Hollywood So Scared of Climate Change?


Environmental concerns have been the driving force of villains in recent superhero and sci-fi movies. But critics say the industry needs to show how society can reform its ways.

One Thing You Can Do: Make Your Donations Count


Also this week, Greta Thunberg sets sail for America.

Documenting a City’s Nocturnal Living


Adjusting to the effects of climate change in Phoenix has been a slow burn for its residents. Covering it required these two journalists to flip their internal clocks.

Heat Wave Sweeps Through Southern United States


Millions of people across Alabama, Arkansas, Mississippi and Tennessee faced excessive heat warnings and high humidity.

States Sue Trump Administration Over Rollback of Obama-Era Climate Rule


The legal fight over how to regulate coal-burning plants could ultimately determine how much leverage the government has to fight global warming.

How to Reduce Exposure to Air Pollution


While most of us do not have the power to make the air cleaner, there are some ways to protect yourself.