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
Science
What's in the released UFO files?
The Pentagon released UFO documents on Friday, with President Trump telling the public to "have fun" deciding for itself what is going on. Carter Evans reports.
Trump: UFO files released for transparency
Defense Secretary Pete Hegseth said it's time for the American people see it for themselves, as the Pentagon started releasing previously classified documents related to UFOs and UAPs. CBS News Pentagon reporter Eleanor Watson has more.
"The Age of Disclosure" director on UFO files
The Pentagon on Friday released and declassified numerous files on UFOs, including eyewitness testimony, photos and reports. Government knowledge of non-human intelligent life was the subject of the documentary "The Age of Disclosure," released in February. Its director and producer, Dan Farah, joins CBS News to discuss.
Pentagon begins releasing UFO files: "It's time the American people see"
Defense Secretary Pete Hegseth said in a statement that the documents "have long fueled justified speculation — and it's time the American people see it for themselves."
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.
U.S.
More U.S.
How did a wealthy widow wind up dead below a staircase in her mansion?
Beverly Hills detectives responding to the death of 67-year-old Violet Yacobi — who was found on the marble floor below a staircase in her mansion — suspected foul play and her dentist son, and wondered if the family fortune was a motive for murder.
Watch our full interview with Spencer Pratt
Former reality TV star Spencer Pratt opened up about his run for mayor of Los Angeles in an exclusive interview with CBS News.
Bobby Cox, longtime Braves manager, dies at 84
Cox managed the Braves for 25 seasons, winning the World Series in 1995.
Audio captures moment Frontier plane fatally struck pedestrian
The plane was evacuated because of smoke in the aircraft after the collision, according to the flight crew.
Pedestrian fatally struck by Frontier plane departing Denver for LA
A pedestrian was hit by a Frontier airplane departing Denver for LA late Friday night, the airport and airline confirmed.
MoneyWatch
More MoneyWatch
Fed unlikely to cut interest rates until 2027, Bank of America says
A "hawkish" turn at the Fed and stubbornly high inflation could delay interest rate cuts, according to Bank of America economists.
What the Trump administration's latest tariff blow means for businesses
A trade court's ruling this week against a 10% U.S. tariff is narrow in scope, offering limited relief to importers. Here's what to know.
ABC accuses the FCC of violating free speech rights over "The View"
ABC filed a petition with the FCC claiming that the agency's scrutiny of "The View" threatens to "chill critical protected speech."
Employers added 115,000 jobs in April, blowing past forecasts
Hiring once again exceeded forecasts, with employers adding far more than the projected gains of 65,000.
U.S. trade court rules against Trump's 10% tariffs
The tariffs were put in place in February, days after the Supreme Court struck down President Trump's previous round of sweeping "Liberation Day" tariffs.
Politics
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Watch our full interview with Spencer Pratt
Former reality TV star Spencer Pratt opened up about his run for mayor of Los Angeles in an exclusive interview with CBS News.
Pentagon says 1 survivor after latest strike on alleged drug boat kills 2
The U.S. military's latest strike on an alleged drug-trafficking boat in the eastern Pacific Ocean killed two men Friday while leaving one survivor.
Alabama lawmakers pass plan for new House primary as state pushes to redistrict
Alabama lawmakers have approved a plan for new House primaries if courts allow the state to use different congressional districts in this year's elections.
What the Trump administration's latest tariff blow means for businesses
A trade court's ruling this week against a 10% U.S. tariff is narrow in scope, offering limited relief to importers. Here's what to know.
Trump announces prisoner swap in 3-day Russia-Ukraine ceasefire
President Trump said the agreement will swap 1,000 prisoners from each country after Russia and Ukraine announced separate short-term ceasefire plans.
HealthWatch
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Cruise ship stricken by hantavirus reaches Canary Islands before planned evacuations
Health officials will begin the complex process of evacuating the passengers and most of the crew, and repatriating them to their respective countries.
Hantavirus cruise passengers to be evacuated
In just hours, the cruise ship at the center of a deadly hantavirus outbreak is expected to arrive in the Canary Islands. All the passengers will then be evacuated to their home countries, including 17 Americans. Ramy Inocencio reports and Dr. Jon LaPook has more on the virus.
WHO director arrives in Canary Islands to oversee hantavirus cruise evacuation
More than 100 people from a cruise ship dealing with an outbreak of the rare and deadly hantavirus are set to be disembarked.
A deadly diagnosis almost derailed a mom's dream. Her husband gave her hope.
Maralee Lellio always dreamed of having a large family. A Stage IV cancer diagnosis almost caused her to lose hope.
Man who survived hantavirus 24 years ago, but lost mom and sister, recounts experience
In 2002, Zermeño found out he contracted hantavirus after cleaning the family house following the death of his mother and sister. He had been exposed to rodent droppings and became infected.
World
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Cruise ship stricken by hantavirus reaches Canary Islands before planned evacuations
Health officials will begin the complex process of evacuating the passengers and most of the crew, and repatriating them to their respective countries.
Putin says Ukrainian conflict nearing end amid Victory Day celebrations
The Victory Day celebrations didn't include a show of heavy weapons for the first time in nearly two decades.
Péter Magyar sworn in as Hungary's prime minister, ending Viktor Orbán's rule
Péter Magyar's center-right Tisza party defeated Orbán's nationalist-populist Fidesz in a stunning blow last month.
WHO director arrives in Canary Islands to oversee hantavirus cruise evacuation
More than 100 people from a cruise ship dealing with an outbreak of the rare and deadly hantavirus are set to be disembarked.
U.K.'s Starmer faces calls to resign after disastrous local elections
British Prime Minister Keir Starmer pledged Saturday to revive the Labour Party after a disastrous set of local and regional elections.
Entertainment
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Entertainment
Behind the scenes of Met Gala glam
Adriana Diaz goes behind the scenes with her prep ahead of this year's Met Gala.
Hiss Golden Messenger performs "Who You Gonna Run To?"
Hiss Golden Messenger is a project led by North Carolina singer-songwriter MC Taylor. The Grammy-nominated group blends multiple genres with earnest and reflective lyrics to create a unique sound. Here's Hiss Golden Messenger performing "Who You Gonna Run To?"
Hiss Golden Messenger performs "Last Orders"
Hiss Golden Messenger is a project led by North Carolina singer-songwriter MC Taylor. The Grammy-nominated group blends multiple genres with earnest and reflective lyrics to create a unique sound. Here's Hiss Golden Messenger performing "Last Orders."
Hiss Golden Messenger performs "In the Middle of It"
Hiss Golden Messenger is a project led by North Carolina singer-songwriter MC Taylor. The Grammy-nominated group blends multiple genres with earnest and reflective lyrics to create a unique sound. Here's Hiss Golden Messenger performing "In the Middle of It."
5/9: Saturday Morning
A Frontier plane struck a pedestrian on the runway in Denver before takeoff. Meanwhile, the cruise ship with a hantavirus outbreak is set to evacuate passengers on Spain's Canary Islands.
Technology
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Technology
Online learning platform Canvas hacked
The online learning platform Canvas, which is used by 30 million students around the world, was hacked Thursday in a massive cyberattack. The platform is used by thousands of schools, including major universities. Jo Ling Kent reports.
Canvas back online after cyberattack hit learning platform for U.S. schools
A system that thousands of schools and universities use was offline due to a cyberattack.
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.
Here's how AI can help with retirement planning, and where it struggles
As more people turn to chatbots for financial advice, experts say AI offers both pros and cons for retirement planning. Here's what to know.
Google unveils screenless Fitbit
Fitness trackers started as devices for measuring workouts, but now they are designed for 24/7 monitoring and the passive collection of health data. Fitbit announced its latest device, called the Fitbit Air, to compete with other screenless trackers like the Whoop. Tech journalist Lexi Savvides joins CBS News with more.
Science
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Science
What's in the released UFO files?
The Pentagon released UFO documents on Friday, with President Trump telling the public to "have fun" deciding for itself what is going on. Carter Evans reports.
Trump: UFO files released for transparency
Defense Secretary Pete Hegseth said it's time for the American people see it for themselves, as the Pentagon started releasing previously classified documents related to UFOs and UAPs. CBS News Pentagon reporter Eleanor Watson has more.
"The Age of Disclosure" director on UFO files
The Pentagon on Friday released and declassified numerous files on UFOs, including eyewitness testimony, photos and reports. Government knowledge of non-human intelligent life was the subject of the documentary "The Age of Disclosure," released in February. Its director and producer, Dan Farah, joins CBS News to discuss.
Pentagon begins releasing UFO files: "It's time the American people see"
Defense Secretary Pete Hegseth said in a statement that the documents "have long fueled justified speculation — and it's time the American people see it for themselves."
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.
Crime
More Crime
Crime
Beverly Hills 911
Beverly Hills detectives try to figure out how a widow ended up dead below a staircase in her mansion. "48 Hours" correspondent Erin Moriarty reports.
How did a wealthy widow wind up dead below a staircase in her mansion?
Beverly Hills detectives responding to the death of 67-year-old Violet Yacobi — who was found on the marble floor below a staircase in her mansion — suspected foul play and her dentist son, and wondered if the family fortune was a motive for murder.
Mother of missing woman in Bahamas speaks out
The search for Michigan mother Lynette Hooker headed into a fifth week as Coast Guard investigators seek to question the owners of a sailboat that was moored near the Hooker's vessel when she went missing. Cristian Benavides reports.
CBS News finds security gaps at Hilton Hotel
CBS News homeland security correspondent Nicole Sganga returned to the Hilton Hotel in Washington, D.C., to better understand the security surrounding the White House Correspondents' Dinner. What she found was a 13-minute gap in security camera coverage in the moments leading up to the shooting.
DOJ yet to authenticate possible Epstein note
A federal judge has made public an apparent suicide note written by convicted sex offender Jeffrey Epstein. CBS News' Anna Schecter reports.
Space
More Space
UFO files reveal astronauts saw mysterious objects and lights in 1972
NASA's Apollo 17 crew reported seeing three mysterious dots and sparks that resembled fireworks, according to new files released by the Pentagon.
Pentagon begins releasing UFO files: "It's time the American people see"
Defense Secretary Pete Hegseth said in a statement that the documents "have long fueled justified speculation — and it's time the American people see it for themselves."
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.
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
Beverly Hills 911
Beverly Hills detectives try to figure out how a widow ended up dead below a staircase in her mansion. "48 Hours" correspondent Erin Moriarty reports.
Chicago 5th graders carry out Pope's mission
This week, Pope Leo XIV marked one year since his historic election, from a low-profile priest from Chicago to one of the most recognizable people on the planet. Noel Brennan visited some of his biggest supporters.
Jellyfish-like fish washing up on beaches
Scientists have been stunned this week by hundreds of thousands of sea creatures washing up along the West Coast. Carter Evans reports.
Bobby Cox dies at 84
Hall of Fame baseball manager Bobby Cox has died at 84 years old. His teams won five National League pennants and the World Series in 1995.
Trump oversees landmark overhauls during war
President Trump is overseeing an overhaul of some of D.C.'s most treasured landmarks and this week, shot back when asked why he'd focus on these projects during a war. Aaron Navarro reports.