Climate, clean energy, and the technology and policy reshaping the planet's future.

The U.S. ships millions of barrels of diesel fuel overseas each day even as Americans face unprecedented prices at home.

A $20 billion data center campus announced in July near Rincon, Georgia, is now facing its second lawsuit from Effingham County residents and environmental advocates. OpenAI, best known for creating ChatGPT, is planning a massive campus that would include about 4.4 million square

Pennsylvania’s data center industry has promised economic growth and a revival of the state’s industrial strength. But a new report issued Tuesday finds little evidence of job growth and warns that adding more of the massive computer complexes could repeat a long history of indus

A clean energy source is buried under the desert, but it takes water to use it and more — today's clean signal.

Geothermal companies face tough tradeoffs over water as they aim to power the data center buildout in Western states.

Scientists have developed an overwhelming array of methods to measure how burning fossil fuels, clearcutting forests and polluting oceans are harming the planet. But which measurements are most critical? Is it the rising concentration of carbon dioxide in the atmosphere or the bu

Florida’s coastal residents know to brace for storm surge, but during 2024’s Hurricane Milton, it was inland communities that suffered some of the greatest flooding. It took three weeks for water to recede from some neighborhoods, remembered Polk County Commissioner Becky Troutma

“Families shouldn’t have to pay for the AI boom with their health.”

Climate Super-Pollutant from China’s Electric Grid Is Cooking the Planet and more — today's clean signal.

Read this article in Chinese 阅读本文中文版. China’s electric grid has a dirty secret: Despite leading the world in renewable energy expansion, it is also the largest emitter of the planet’s most potent greenhouse gas. Sulfur hexafluoride (SF6) is a synthetic chemical that plays a criti

Democrats controlled the Senate and the presidency when Sen. Sheldon Whitehouse first sought to roust his colleagues from the chamber’s floor, warning them that they were sleep-walking into climate disaster. Fourteen years and more than 300 “Time to Wake Up” speeches later, the R

Geothermal companies face tough tradeoffs over water as they aim to power the data center buildout in Western states.

A federal judge has declared that the Trump administration unlawfully terminated $7 billion in grant funding for clean energy programs in disadvantaged communities. The Solar for All program, established during the Biden administration as part of the Inflation Reduction Act, prov

Two divergent worldviews emerged from the first two national addresses on the opening day of the United Nations General Assembly’s 81st session in New York.  Brazil’s president, Luiz Inácio Lula da Silva called for decarbonizing economies, protecting forests and supporting the en

The U.S. ships millions of barrels of diesel fuel overseas each day even as Americans face unprecedented prices at home.

A $20 billion data center campus announced in July near Rincon, Georgia, is now facing its second lawsuit from Effingham County residents and environmental advocates. OpenAI, best known for creating ChatGPT, is planning a massive campus that would include about 4.4 million square

With a new platform called Who Eats Whom, citizen scientists reveal the fascinating, sometimes shocking interactions between species.

Workforce programs are trying to ride out the legal, administrative, and economic headwinds of the Trump administration.

Pennsylvania’s data center industry has promised economic growth and a revival of the state’s industrial strength. But a new report issued Tuesday finds little evidence of job growth and warns that adding more of the massive computer complexes could repeat a long history of indus

Almost nobody wants a data center for a neighbor. Residents fear noise and air pollution, excessive energy and water use and the loss of open land. In Pennsylvania, a hot spot for new data centers, researchers see an opportunity to solve some of these issues by taking advantage o

The Forest Service is proposing to allow motorized vehicles on all trails, two-tracks, and roads unless it explicitly designates otherwise.

Scientists have developed an overwhelming array of methods to measure how burning fossil fuels, clearcutting forests and polluting oceans are harming the planet. But which measurements are most critical? Is it the rising concentration of carbon dioxide in the atmosphere or the bu