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This major California river has gotten too warm for its salmon

Chinook salmon have been laying eggs in gravelly nests in the Sacramento River for millennia. But California’s biggest river is now so warm that biologists expect a significant number of the eggs won’t hatch.

Environmental advocates blame the Trump administration. They say the federal government took too much water out of Shasta Lake for ...Read more

A gas- and coal-fired power plant in Indiana sits right next to a residential area.  Scott Olson/Getty Images

EPA says repealing power plant emissions rules will save billions – but its estimate leaves out health and climate costs

The Trump administration is repealing federal rules that limit greenhouse gas emissions from coal- and gas-fired power plants.

It says the changes will make electricity cheaper for Americans. What consumers pay will depend partly on the cost of keeping older plants running compared with building and operating new ones. Even if the ...Read more

Mario Tama/Getty Images North America/TNS

Trump administration says developers, loggers can kill endangered species

The Trump administration’s top wildlife official issued a directive last week that expands a recent rollback of endangered species protections much further than the feds had told the public.

Individuals and industries may kill endangered animals in the course of logging projects, developments and other activities, it said — so long as the ...Read more

Mohamed Ahmed Soliman/Dreamstime/TNS

Meta's new Muse AI app tops charts, draws strong reviews

Meta Platforms Inc.’s new artificial intelligence agent, Muse, has quickly risen to the top of mobile app charts, a sign that the social media company is gaining traction in the increasingly crowded market for consumer AI assistants.

Muse is ranked the No. 1 free app on the U.S. Apple Inc. iOS App and Google Play stores as of Monday. The ...Read more

David Maialetti/The Philadelphia Inquirer/TNS

Will AI save or destroy us? At Pittsburgh summit, tech leaders shift between hope and despair

Artificial intelligence promises a vastly different future as it actively disrupts the present — but the problem, and fear, is that no one seems to know what that future will be.

There’s a world where AI does all the things humans desire:

A world where disease is eradicated as technology accelerates scientific breakthroughs. Where every ...Read more

Saul Loeb/AFP/GETTY IMAGES NORTH AMERICA/TNS

FAA begins rollout of AI air traffic tool to reduce delays

The U.S. Federal Aviation Administration began rolling out a new artificial intelligence tool that the agency said will help identify spots of potential congestion early on to help curb flight delays and cancellations.

The FAA began using this new tool, known as SMART, in a “limited mode” Monday in the airspace around Washington, the U.S. ...Read more

L.E. Baskow/Las Vegas Review-Journal/TNS

Amazon makes $20 million bet on the Colorado River

Amazon has launched what it calls one of the biggest corporate water conservation efforts for a single U.S. watershed with a pledge to invest $20 million into the Colorado River Basin.

Executives are calling the program the Colorado River Basin Collaborative. Participating companies, including supermarket giant Aldi and The Coca-Cola Foundation...Read more

An affordable-housing crisis and a growing homeless population led Los Angeles to declared a shelter crisis during the 2015-16 El Niño. David McNew/Getty Images

As cities prepare for 2026’s super El Niño, some crucial blind spots can’t be ignored

This year’s El Niño has the potential to be one of the strongest in living memory, and the evidence is showing up around the world.

The U.S. just saw its hottest summer on record in the Lower 48 states. Drought is slowing shipping in the Panama Canal. The Pacific is experiencing an exceptionally busy hurricane season, while the ...Read more

Edmund Lowe/Dreamstime/TNS

What will super El Niño mean for Puget Sound's already warming waters?

The Puget Sound region is heating up; there’s no doubt about it.

The years 2025 and 2026 saw warmer-than-usual temperatures across Western Washington, from Olympia to Bellingham. It’s not just here. NOAA recently reported that 2026 was the warmest summer on record for the contiguous United States.

And not just in the air. Puget Sound’s ...Read more

Hyoung Chang/The Denver Post/TNS

St. Mary's Glacier melted away. Will Colorado's iconic snowfield ever return?

DENVER — St. Mary’s Glacier is gone.

And it may never return to its glory days as an iconic snowfield above 10,000 feet in Clear Creek County, where it drew year-round skiers and graced postcards mailed home by thousands of tourists who visited Colorado’s mountains.

The remaining bits of snow and ice melted away this past week, leaving ...Read more

A rush of mud, rock and water inundated the town of Trishuli, Nepal, on Aug. 26, 2026, after a glacier collapsed. Pedro Pardo/AFP via Getty Images

Flood-damaged Nepal wants help from the global climate Loss and Damage Fund – but it’s waiting, along with 118 other countries

As it faces the enormous task of rebuilding from a deadly flood that tore through communities in the Himalayas, Nepal is seeking compensation from the international Fund for Responding to Loss and Damage – meaning from countries that are major contributors to climate change, which it blames for the disaster.

Nepal Foreign Minister ...Read more

Justin Enriquez/The Minnesota Star Tribune/TNS

Meta glasses captured and shared intimate images without users' consent, lawsuit claims

As Meta prepares to release new wearables, privacy fears surrounding its artificial intelligence glasses have triggered fresh lawsuits against the social media giant.

More than 70 people who bought, used or were recorded with Meta's smart glasses have sued the social media giant, claiming their intimate and sensitive images were exposed to ...Read more

Dreamstime/Dreamstime/TNS

How existential fears are shaping the debate over AI

The current round of panic over artificial intelligence is based on the conviction that the technology has slipped out of human control to do its own bidding in several recent incidents. To some disillusioned AI researchers — and some senior employees at leading AI companies — this is an early sign of a true threat to human civilization. But...Read more

Nick Wagner/The Seattle Times/TNS

As Microsoft charts AI spending, Wall Street and workers keep watch

Microsoft has rarely seen a wipeout like it.

At one point this summer, the Redmond, Washington-based tech giant saw its stock price plummet 35% from its all-time high.

The company wasn’t on the ropes financially. In fact, Microsoft was more profitable than ever, with a growing cloud computing business that propelled the company to earn $133 ...Read more

SpaceX/SpaceX/TNS

NASA, SpaceX target early October launch as Crew-13 head into quarantine

Central Florida astronaut Luke Delaney is getting closer to his first spaceflight as he and his three Crew-13 crewmates entered quarantine Thursday night targeting a Space Coast launch in early October.

Delaney, 47, who grew up in Volusia County and attended both DeLand and Deltona high schools, was chosen as a member of the 2021 class of ...Read more

Diesel fuel prices are at all-time highs in the United States. Paul Weaver/SOPA Images/LightRocket via Getty Images

Iran war pushes diesel – the economy’s lifeblood – to record high prices, with no relief on the horizon

Diesel fuel prices in the U.S. continue to break all-time records, hitting $6.28 a gallon as a national average on Sept. 14, 2026, and they aren’t likely to come down anytime soon. Because diesel is the fuel for freight transportation, farming and construction – and is related to a key heating fuel – the effects are set to spread across...Read more

Kevin Richardson/Baltimore Sun/TNS

Trump revokes Obama-era order that served as framework for Chesapeake Bay restoration

BALTIMORE — President Donald Trump issued an executive order this week revoking an order that has mandated states and municipalities to contribute to improving the health of the Chesapeake Bay for 17 years, claiming the order allowed for unnecessary taxes, according to a White House news release.

The Obama-era executive order from 2009 ...Read more

For the first time, scientists link heavy snow to groundwater in California

LOS ANGELES — For the first time, scientists have found a direct link between the snow that falls on California’s mountains and the groundwater that lies beneath Central Valley farmlands.

Analyzing two decades of measurements from NASA satellites, the researchers discovered that after a snowy winter in the Sierra Nevada, the melting snow ...Read more

The author works on gathering soil samples in a field near Mill 19 in Hazelwood. Kevin Lorenzi/Mellon College of Science via Carnegie Mellon University

At an old steel site in Pittsburgh, bacteria evolved to survive – and eat – industrial pollution

Across Appalachia and the Rust Belt region, including throughout the city of Pittsburgh, former industrial sites are being transformed into new neighborhoods, research centers and technology hubs.

But another transformation has been taking place beneath them for decades.

Brownfields are former industrial or commercial sites. ...Read more

Elizabeth Robertson/The Philadelphia Inquirer/TNS

Osprey chicks are starving at the Jersey Shore, study says

An icon of Jersey Shore waterways is in peril, according to a Stockton University study.

The osprey, a raptor that feeds primarily on fish, was reclassified from “threatened” to “stable” by New Jersey’s Department of Environmental Protection’s Fish and Wildlife agency, but a recent study by Atlantic County University, whose mascot ...Read more