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.
ClimateWatch: Climate Change News & Features
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
"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.
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.
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.
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.
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.
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.
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.
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."
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.
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%.
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.
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?"
U.N. climate talks start in Brazil: "We need to accelerate the fight"
U.N. climate negotiations get underway in Brazil, with leaders urging urgency and cooperation to curb global warming. The Trump administration is not participating.
Science
Mysterious world beyond Pluto may have atmosphere, study says
If confirmed, the rock would become just the second world past Neptune in our solar system to host an atmosphere.
Bill Nye on the Artemis II moon mission
Bill Nye The Science Guy, the chief ambassador of The Planetary Society, joins CBS News 24/7 Mornings with more after meeting the Artemis II crew in person after their successful mission around the moon.
Trump administration fires board overseeing National Science Foundation
The Trump administration has fired all 22 current members of an independent board that oversees the National Science Foundation, one dismissed member says.
AI used to reveal face of victim fleeing Mount Vesuvius eruption
Archaeologists found the victim holding a terracotta mortar, which they interpret as an improvised attempt to shield his head.
In a first, endangered orangutan seen using canopy bridge to cross road
Rapid development has been shrinking the jungle habitat of the critically endangered species, and fatal conflicts with people have been increasing.
Saving the Venus fly trap
The carnivorous Venus fly trap is native to the Carolinas, but its population is dwindling due to loss of habitat. Correspondent Seth Doane talks with botanist Julie Moore, who has spent much of her life helping to save these remarkable plants; and with Damon Waitt, director of the North Carolina Botanical Garden, who discusses the unusual traits of a species that Charles Darwin called the most interesting plant in the world.
From 1990: NASA launches Hubble Telescope
On April 24, 1990, NASA launched the Hubble Space Telescope from the Space Shuttle Discovery after seven years of delays. Watch CBS News' coverage from that day.
60-foot octopus ruled the seas during age of dinosaurs, fossils show
New analyses of fossilized jaws reveal that massive, kraken-like octopuses once hunted alongside other marine predators.
Mysterious "golden orb" found in deep sea in 2023 is finally identified
Scientists spent over two years identifying a mysterious object found off the coast of Alaska in 2023.
Salmon exposed to cocaine swim almost twice as far, study shows
Researchers studied how the drug affected the movements of wild fish in their natural habitats.
Mars rover carries out chemistry experiment never done beyond Earth
"This experiment's never been run before on another world," said Amy Williams, an astrobiologist working on the Curiosity mission.
Cementing a more sustainable alternative to concrete
The process of making 30 billion tons of concrete every year produces more carbon pollution than all the world's ships and planes put together. Now, the North Carolina and Denmark-based Biomason is using biotechnology, including naturally-occurring microbes, to create "biocement" that's just as sturdy but emits much less CO2. David Pogue reports.
Breeding a better bread
Over the past century, the cultivation and processing of wheat has led to strains of grain that are less nutritious, less flavorful, and more vulnerable to climate change. The researchers at Breadlab, at Washington State University, are trying to breed varieties of whole grains that are better for farmers, consumers – and taste buds. David Pogue reports.
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.
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. Correspondent David Pogue examines what Panthalassa's alternative to land-based data centers may mean.
U.S.
More U.S.
Manhunt on for retired special forces soldier accused of shooting wife
Authorities say Craig Berry, a retired special forces soldier, shot his wife and then fled into the woods in northern Tennessee.
To avoid risk of mines, Navy directs ships on path farther from Iran
The U.S. warns that transiting the normal route could be "extremely hazardous" because of mines laid in the Strait of Hormuz by Iran.
Exclusive
Homan: "Things weren't perfect" in Minneapolis, but ICE not backing down
Border czar Tom Homan conceded "things weren't perfect" during the crackdown in Minneapolis, but stressed that the administration is not backing down from its mass deportation effort.
EEOC sues New York Times, alleging bias against White male worker
Employment watchdog accuses the New York Times of violating federal law by passing over a White male journalist for a job.
Exclusive
In Lynette Hooker probe, Coast Guard seeks info about mystery sailboat
The U.S. Coast Guard is trying to find the owners of a sailboat that may have been moored next to Lynette Hooker's vessel the night she disappeared in the Bahamas, marking a new development in the search for the missing Michigan woman.
MoneyWatch
More MoneyWatch
EEOC sues New York Times, alleging bias against White male worker
Employment watchdog accuses the New York Times of violating federal law by passing over a White male journalist for a job.
Meta trained its AI on copyrighted work, new lawsuit alleges
The lawsuit claims that Meta's Llama is generating summaries — and, in some cases, verbatim copies — of original works.
Delta ending food and beverage service on shorter flights
Routes that are under a certain distance will no longer offer food and beverage service, the airline said.
Utz potato chips sold nationwide recalled over salmonella risk
Utz Quality Foods is recalling some of its Zapp's and Dirty brand potato chips because an ingredient may be contaminated by salmonella.
UnitedHealthcare to cut prior authorization for 30% of treatments
The largest U.S. health insurer said it will eliminate approval requirements for some treatments, including select outpatient surgeries and other procedures.
Politics
More Politics
Republican Derek Merrin projected to win Ohio's 9th District primary
Derek Merrin won the GOP primary in Ohio's 9th Congressional District on Tuesday, setting up a rematch against longtime Democratic Rep. Marcy Kaptur in what's expected to be one of the most contested House races of the year.
3 killed in U.S. strike on suspected drug boat in eastern Pacific, Pentagon says
The attack came a day after U.S. forces struck an alleged drug boat in the Caribbean Sea, killing two people.
Trump largely succeeds in upending Indiana state Senate over redistricting
President Trump had backed challengers to Indiana state senators who voted against his redistricting plan — and on Tuesday, most of them won.
Vivek Ramaswamy projected to win Ohio GOP nomination for governor
Vivek Ramswamy will face Democrat Amy Acton, a former Ohio Department of Public Health director, in November.
Ohio Senate race set between Jon Husted, Sherrod Brown
CBS News projected that former Sen. Sherrod Brown won the Democratic primary, while incumbent Sen. Jon Husted ran unopposed.
HealthWatch
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HealthWatch
What we know about cruise hantavirus outbreak
A rare form of hantavirus is believed to have spread person-to-person on board a cruise ship. Three people are dead, four more are ill and nearly 150 others are stranded aboard the ship, where they will stay potentially for months until they are cleared to leave. Tom Hanson has more.
How hantavirus may have spread aboard a cruise ship
A suspected hantavirus outbreak on the MV Hondius cruise ship has killed three people and sickened at least four others, officials said.
UnitedHealthcare to cut prior authorization for 30% of treatments
The largest U.S. health insurer said it will eliminate approval requirements for some treatments, including select outpatient surgeries and other procedures.
Latest on apparent hantavirus cruise outbreak
A suspected outbreak of hantavirus on a cruise ship has killed three people, officials say. Tom Hanson reports.
Alito temporarily restores FDA rule allowing abortion pill to be sent by mail
A federal appeals court blocked a FDA rule that allowed the abortion pill mifepristone to be dispensed through the mail.
World
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3 killed in U.S. strike on suspected drug boat in eastern Pacific, Pentagon says
The attack came a day after U.S. forces struck an alleged drug boat in the Caribbean Sea, killing two people.
Trump pauses Project Freedom in Strait of Hormuz to see if Iran deal can be struck
President Trump said Tuesday he has paused Project Freedom, a U.S. effort to guide commercial ships through the Strait of Hormuz.
How hantavirus may have spread aboard a cruise ship
A suspected hantavirus outbreak on the MV Hondius cruise ship has killed three people and sickened at least four others, officials said.
Amsterdam bans advertising for meat and fossil fuels in public places
The city, known for its tolerance of some drugs and sex work, no longer allows ads for airlines, cruises, beef, chicken, pork or fish products.
U.K. counter-terror police investigate arson at former synagogue
Keir Starmer warned Tuesday that there would be "consequences" if Iran is proven to be behind a recent series of antisemitic attacks in the capital.
Entertainment
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Entertainment
Tony Awards nominations breakdown
"The Lost Boys," starring Shoshana Bean, leads this year's Tony nominations along with "Schmigadoon!" Both opened just weeks ago, and each cinched 12 nods. CBS News New York reporter Dave Carlin has more about the nominees.
Douglas Stuart reads "John of John" excerpt
Oprah Winfrey selected "John of John" by award-winning author Douglas Stuart, known for "Shuggie Bain," as her latest book club pick. Watch the author, Douglas Stuart, read an excerpt from his novel that Winfrey calls " a complex and compelling tale that ultimately showcases the transformational power of love."
Details from the Met Gala red carpet
CBS News' Adriana Diaz and contributor Lauren Sherman join CBS News 24/7 to share details from the 2026 Met Gala.
Breaking down the 2026 Tony Awards nominees
The nominees for the 79th annual Tony Awards, which air on CBS on June 7, were revealed on Tuesday. CBS News New York's Dave Carlin joins with more.
Zac Posen on Kendall Jenner's Met Gala look
GAP Inc. executive vice president and creative director Zac Posen discusses designing model Kendall Jenner's dress for this year's Met Gala. He also dives into other looks that stood out at the annual event.
Technology
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Technology
OpenAI co-founder's diary surfaces in Musk trial
The high-stakes trial between Elon Musk and OpenAI now involves testimony about a co-founder's personal diary. Vanity Fair contributor Tom Dotan joins to discuss.
Coinbase to lay off 700 workers as crypto company embraces AI
"This is a new way of working, and we need to leverage AI across every facet of our jobs," CEO Brian Armstrong said in a letter to employees.
How AI powered robots are helping small farms
From labor shortages to environmental impacts, farmers are looking to AI to help revolutionize the agriculture industry. One California startup, Farm-ng, is tapping into the power of AI and robotics to perform a wide range of tasks, including seeding, weeding and harvesting.
Pennsylvania suing Character AI, claims chatbot posed as medical professional
A Character AI chatbot falsely claimed to be a licensed psychiatrist in Pennsylvania and provided an invalid license number, the state alleged.
GameStop offers to buy eBay for $55.5 billion, threatens hostile bid
EBay said on Monday that it will "carefully review" GameStop's unsolicited $ 125-per-share takeover offer.
Science
More Science
Mysterious world beyond Pluto may have atmosphere, study says
If confirmed, the rock would become just the second world past Neptune in our solar system to host an atmosphere.
Bill Nye on the Artemis II moon mission
Bill Nye The Science Guy, the chief ambassador of The Planetary Society, joins CBS News 24/7 Mornings with more after meeting the Artemis II crew in person after their successful mission around the moon.
Trump administration fires board overseeing National Science Foundation
The Trump administration has fired all 22 current members of an independent board that oversees the National Science Foundation, one dismissed member says.
AI used to reveal face of victim fleeing Mount Vesuvius eruption
Archaeologists found the victim holding a terracotta mortar, which they interpret as an improvised attempt to shield his head.
In a first, endangered orangutan seen using canopy bridge to cross road
Rapid development has been shrinking the jungle habitat of the critically endangered species, and fatal conflicts with people have been increasing.
Crime
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Crime
Antisemitic graffiti found across NYC
An investigation is underway in New York City after multiple locations were vandalized with antisemitic graffiti. CBS News' Jared Ochacher reports from Queens.
Manhunt underway for former soldier
In northern Tennessee, a retired Special Forces soldier is accused of shooting his wife and then using his training to disappear into the woods. Nicole Valdes reports.
Manhunt on for retired special forces soldier accused of shooting wife
Authorities say Craig Berry, a retired special forces soldier, shot his wife and then fled into the woods in northern Tennessee.
Tanner Horner sentenced to death in murder of 7-year-old Athena Strand
A Tarrant County jury sentenced Tanner Horner to death for the 2022 kidnapping and murder of 7-year-old Athena Strand.
2 killed in Texas shopping center shooting
Police gave an update Tuesday on a shooting at a Dallas-area shopping center that killed two people. The suspect is in custody, authorities said.
Space
More Space
Mysterious world beyond Pluto may have atmosphere, study says
If confirmed, the rock would become just the second world past Neptune in our solar system to host an atmosphere.
Artemis crew surprises 5-year-old aspiring astronaut with special gift
The Artemis II team gained a new member, and the crew made sure their youngest teammate had the right stuff for space.
Artemis II crew reveals what snack they ate right after splashdown
The Artemis II astronauts said they actually really enjoyed the space food, but it was a familiar candy they enjoyed after splashing down in the Pacific Ocean.
Artemis II astronauts talk mission toilet troubles: "We made do"
The plumbing issues aboard the Orion capsule became headline news in the early days of the historic Artemis II mission.
Only on CBS
Artemis crew tells kids moon flight was "the best roller coaster ride"
The Artemis II astronauts joined "CBS Mornings" for a live town hall where they took questions from kids just weeks after returning from their historic moon mission.
Latest Galleries
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Notable Deaths in 2026
A look back at the esteemed personalities who've left us this year, who'd touched us with their innovation, creativity and humanity.
Evidence in the Barbara Kendhammer case
Does the evidence show a cover-up, or was Todd Kendhammer wrongfully convicted for the murder of his wife?
The life & near death of prizefighter Christy Salters-Martin
Christy Salters-Martin dominated in the boxing ring but faced her toughest challenger at home.
Timeline: The disappearance of George Smith
Family seeks answers in death of newlywed who disappeared in 2005 while on Mediterranean honeymoon cruise.
Who is Alix Tichelman?
Meet the tattooed beauty charged in the death of Google executive Forrest Hayes.
Latest CBS News Videos
More Latest CBS News Videos
Latest CBS News Videos
Antisemitic graffiti found across NYC
An investigation is underway in New York City after multiple locations were vandalized with antisemitic graffiti. CBS News' Jared Ochacher reports from Queens.
OpenAI co-founder's diary surfaces in Musk trial
The high-stakes trial between Elon Musk and OpenAI now involves testimony about a co-founder's personal diary. Vanity Fair contributor Tom Dotan joins to discuss.
Tony Awards nominations breakdown
"The Lost Boys," starring Shoshana Bean, leads this year's Tony nominations along with "Schmigadoon!" Both opened just weeks ago, and each cinched 12 nods. CBS News New York reporter Dave Carlin has more about the nominees.
5/5: The Takeout with Major Garrett
Rubio says Operation Epic Fury is over; primary day in Indiana and Ohio.
Sister of returning sailor speaks out
The USS Gerald R. Ford, the Navy's largest aircraft carrier, will soon return to the U.S. after the longest deployment since the Vietnam War. Among the returning sailors is Aviation Boatswain's Mate Airman Tiffany Galarza. Her sister, Brianna Caudill, joins "The Daily Report."