Emperor penguins in focus as Antarctica talks start in Japan

Greater protections for endangered emperor penguins and how to manage growing tourism are topping the agenda at talks on Antarctica in Japan.

• May 12

New report ranks the cleanest and most polluted U.S. cities

The new report evaluated air quality in different parts of the country by measuring the presence of ozone and particle pollution in the atmosphere.

• Apr 22

Using the ocean to power data centers

The renewable energy company Panthalassa says it has a solution to the proliferation of AI data centers, which consume massive amounts of energy and are the cause of increased carbon pollution: sea-based data centers, powered by wave energy.

• Apr 19

March smashed heat records in several ways, federal data shows

Last month was the hottest March on record for the Lower 48 states, by the most for any month ever, federal data shows. And a forecast El Niño could heat Earth even more.

• Apr 9

Emperor penguins listed as endangered species

The emperor penguin has been declared an endangered species as climate change​ pushes the icon of Antarctica a step closer to extinction, the global authority on threatened wildlife says.

• Apr 9

EPA chief Lee Zeldin tells climate skeptics to "celebrate vindication"

The head of the Environmental Protection Agency on Wednesday defended his decision to repeal the legal determination that serves as the basis for federal rules to slow climate change.

• Apr 8

The West's historic snow drought could bring water shortages, wildfires

The western United States experienced a severe snow drought this year, threatening the region's water supply and potentially setting the stage for its wildfire season.

• Mar 21

Sea levels higher than thought due to "methodological blind spot," study says

A new study in the journal Nature says most sea level rise research may have underestimated coastal water heights by an average of 1 foot.

• Mar 5

El Niño could return this year and make Earth even hotter

The weather phenomenon known as El Niño could form later this year, potentially pushing global temperatures to record heights, researchers say.

• Mar 2

Supreme Court to weigh energy companies' bid to end state climate change suits

The Supreme Court agreed to take up an effort by energy companies to end a lawsuit filed in state court that seeks billions of dollars in damages.

• Feb 23

In a first, shark seen on camera in Antarctica waters, surprising researchers

A large shark was caught on camera for the first time in Antarctica's waters, surprising researchers. "There's a general rule of thumb that you don't get sharks in Antarctica," one said.

• Feb 18

How Washington's crossing of the Delaware presaged a changing world

On the evening of Christmas 1776, Gen. George Washington surprised the King's forces by leading the Continental Army in a surprise crossing of a near-frozen Delaware River - a watershed military maneuver that dramatized a changing America, and a changing climate.

• Feb 15

Trump's EPA revokes the "endangerment finding." Here's what to know.

The Trump administration says greenhouse gases emitted from sources like cars, trucks and power plants will no longer be regulated by the federal government.

• Feb 12

"Black carbon" in Arctic an increasing concern amid other issues in region

"Black carbon," or soot, that spews from ships and makes the Artic Ocean ice melt even faster is an increasing concern in a region beset with many other issues.

• Feb 9

Wildfire smoke pollution linked to 24,100 U.S. deaths per year, study finds

"Our message is: Wildfire smoke is very dangerous. It is an increasing threat to human health," said a study author.

• Feb 5

Scientists "quite surprised" to find one polar bear population thriving

After decades monitoring polar bears in Norway's far north, researchers say the animals have proven incredibly adaptable, but there are no guarantees for the future.

• Jan 29

Winter storm doesn't disprove climate change, despite Trump's claim

President Trump cited a major winter storm​ as evidence to suggest that global warming does not exist — a misleading claim that has been consistently debunked by climate experts.

• Jan 23

World is entering era of "water bankruptcy," U.N. report warns

Water sources are being depleted faster than they can be restored, according to a new report from United Nations researchers.

• Jan 21

Massive bluefin tuna fetches record $3.2 million at Tokyo auction

A massive 535-pound bluefin tuna sold for a record 510 million yen ($3.2 million) at the first auction of 2026 at Tokyo's Toyosu fish market.

• Jan 5

2025 was so hot it pushed Earth past critical climate change mark

2025 was the third hottest year on record and pushed Earth past a critical climate change mark, scientists say.

• Dec 30, 2025

Major climate research center on Trump administration chopping block

The Trump administration intends to dismantle one of the world's leading climate research institutions, in Boulder, Colorado, over what it said were concerns about "climate alarmism."

• Dec 17, 2025

Arctic temperatures rising twice as fast as elsewhere, NOAA report says

Temperatures in the Arctic continue to follow a long-term warming trend, according to the National Oceanic and Atmospheric Administration.

• Dec 17, 2025

Researchers lower estimate of drop in global income due to climate change

The researchers, writing in the journal Nature in 2024, had forecast a 19% drop in global income by 2050. Their revised analysis puts the figure at 17%.

• Dec 3, 2025

SpaceX launches second satellite to monitor sea level changes

The Sentinel-6B is the second of two satellites in a $1 billion program to monitor sea levels over a full decade.

• Nov 17, 2025

As Trump skips U.N. climate summit, Newsom hurls criticism from Brazil

The Trump administration sent nobody to the U.N. global climate summit, leaving California Governor Gavin Newsom to ask, "What the hell is going on here?"

• Nov 11, 2025

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