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.
ClimateWatch: Climate Change News & Features
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.
Hundreds of dolphins found dead in lake were in water hotter than jacuzzi
"You couldn't put your finger in the water," said the lead author of the study, which spotlights the impacts of planetary warming on aquatic ecosystems.
Maps show Hurricane Melissa's forecast path
Hurricane Melissa brought hurricane-force gusts to Bermuda overnight and will weaken as it heads north, the U.S. National Hurricane Center said. Maps show its forecast path.
Bill Gates shifts tone on climate, criticizes "doomsday view"
For decades, Bill Gates has warned of climate disaster — but his tone meaningfully shifted as he cautioned against taking a "doomsday view" on the planet's future.
Trump admin. aims to auction offshore oil leases despite states' opposition
The Trump administration is proposing to auction offshore oil drilling leases across new portions of the U.S. coast as soon as 2026, according to internal documents viewed by CBS News.
Heat wave caused key part of Florida coral reef to become "functionally extinct"
A record 2023 heat wave all but eradicated two species of coral that historically served as the backbone of Florida's reefs, researchers said in a new report.
Race on to find shelter for hundreds from Alaskan villages slammed by storm
More rain and wind were forecast Wednesday for the Alaskan coast where two tiny villages were decimated by Typhoon Halong's remnants. Officials scrambled to find shelter for more than 1,500 people.
Fall foliage colors muted in several regions due to drought
Leaf-peeping season has arrived in the Northeast and beyond, but weeks of drought have dulled this year's autumn colors and sent leaves fluttering to the ground earlier than usual.
1 dead, 2 missing after severe Alaska flooding; "absolute devastation"
One person was dead and two missing in western Alaska after the remnants of Typhoon Halong brought hurricane-force winds and ravaging storm surges and floodwaters to the region.
Coral reefs are first environmental system to pass climate "tipping point"
Crucial for marine life and the global economy, coral reefs are the planet's first major environmental system to cross a climate "tipping point" as the world warms.
Arctic seals, most bird species on new list of threatened species
One bright spot is green sea turtles, which have recovered substantially, the IUCN said as it released its latest Red List of Threatened Species.
Inhalers for asthma, COPD are climate change contributors, study finds
"These emissions drive global warming, exacerbating the very respiratory conditions inhalers are meant to relieve," researchers wrote.
Trump administration cancels $8 billion for climate projects
The targeted climate-related projects are in 16 states, all of which voted for Vice President Kamala Harris in 2024.
Vermont drought is hitting dairy farmers hard as they turn to costly measures
An ongoing drought in Vermont is depleting feed crops, causing problems for dairy farmers who have been pushed to adapt and take costly measures to care for their cattle.
Science
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.
Mysterious dark matter seen in new map of distant galaxies
Dark matter doesn't absorb or give off light so scientists can't study it directly. But they can observe how its gravity warps and bends the star stuff around it.
Cow develops technique to scratch herself
"CBS Saturday Morning" learns more about Veronika, the clever cow who figured out multiple ways to scratch herself with a broom. It was the first time a cow was seen using a tool.
Almanac: January 18
"Sunday Morning" looks back at historical events on this date.
Fossils found at Dinosaur National Monument, first excavation in 100 years
The Dinosaur National Monument, which is located on the border between Colorado and Utah, was last excavated in 1924.
Dogs can learn by eavesdropping: study
Have you ever wondered if your dog is eavesdropping on you? A new study published in the Journal of Science found that some dogs are not only listening, but are also learning words. Lead scientist Dr. Shany Dror joins CBS News to discuss.
Fossils found in cave shed light on where our species emerged
Fossilized bones and teeth dating to 773,000 years ago are providing a deeper understanding of the emergence of Homo sapiens.
The history and mystery of kissing
If you rang in the new year with a kiss, you took part in a tradition millions of years in the making. Scientists now say the origins of kissing go back much farther than most think. CBS News' Tina Kraus has more.
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."
Researchers capture video of rare polar bear adoption
The footage of a bear caring for an adopted cub was captured during the annual polar bear migration along the Western Hudson Bay in Churchill, Manitoba.
Dinosaur tracks showing "herds moving in synchrony" found in Italy
Most of the footprints are elongated and made by bipeds. The best-preserved ones bear traces of at least four toes.
Interstellar comet is making its closest approach to Earth
NASA continues to aim its space telescopes at the visiting ice ball, estimated to be up to 3.5 miles in size.
Fossil footprints in Bolivia reveal dinosaurs' awkward attempts to swim
Paleontologists have discovered and documented 16,600 footprints left by theropods, the dinosaur group that includes the Tyrannosaurus rex.
"Space gum" discovered in asteroid Bennu samples, NASA reveals
Samples collected from the asteroid Bennu are continuing the shed light on the origins of the solar system and how life developed on Earth, scientists say.
U.S.
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California urges avoiding wild mushrooms after deaths, liver transplants
More than three dozen cases of death cap mushroom poisonings have been reported in California since November, health officials said.
Zelenskyy says U.S. gave Ukraine, Russia a deadline for agreement to end war
If the June deadline is not met, the Trump administration will likely put pressure on both sides to meet it, Zelenskyy told reporters.
Pentagon says it's cutting ties with "woke" Harvard
The Pentagon says it will cut ties with Harvard University, ending graduate-level military training, fellowship and certificate programs.
Truck driver spends decades carving a scale model masterpiece of New York City
Beginning in 2004, Joe Macken carved all five boroughs of New York City out of balsa wood, every site and stadium, and every bridge and building. His creation consists of almost 1 million structures.
Heightened security from dozens of local, federal agencies ahead of Super Bowl
More than 35 local, state and federal agencies have been working for the last 18 months to prepare for Super Bowl LX in Santa Clara, California.
MoneyWatch
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Exclusive
Lutnick and Epstein were in business together, Epstein files show
Though the commerce secretary has called his interactions with Epstein as "limited," the two were in business together four years after Epstein's 2008 guilty plea.
Dow crosses 50K for first time as stocks enjoy best day since May 2025
Resurgent technology stocks drove the rebound after a volatile week, while bitcoin also recouped losses.
Purported Nancy Guthrie ransom note demanded bitcoin. Could it be tracked?
Cryptocurrency transactions are often thought to be anonymous and untraceable. That's a misconception, experts tell CBS News.
Prediction markets soar ahead of the Super Bowl
Emboldened by loosened restrictions from federal regulators, prediction markets look to cash in on Super Bowl Sunday.
See the 43 drugs available on new discounted drug site TrumpRx
Here's what to know about TrumpRx, including how it works, who can use it, and how much money it can save.
Politics
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Some Team USA athletes speak out about politics at home
Skier Chris Lillis said he was "heartbroken about what's happened in the United States," while skater Amber Glenn said she "will not just be quiet."
Zelenskyy says U.S. gave Ukraine, Russia a deadline for agreement to end war
If the June deadline is not met, the Trump administration will likely put pressure on both sides to meet it, Zelenskyy told reporters.
Appeals court endorses Trump policy of denying bond hearings to many ICE detainees
A federal appeals court on Friday endorsed the Trump administration's policy of holding broad groups of immigration detainees without access to bond hearings, a major legal victory for President Trump.
Pentagon says it's cutting ties with "woke" Harvard
The Pentagon says it will cut ties with Harvard University, ending graduate-level military training, fellowship and certificate programs.
Trump says he "didn't see" image depicting Obamas as apes in social media post
President Trump late Friday addressed a video posted to his social media account that included a racist depiction of Barack and Michelle Obama as apes, telling reporters he didn't see the part that showed the former president and first lady.
HealthWatch
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Her deadly diagnosis only had 1 warning sign. Here's how she survived.
Becca Valle, then 37, enrolled in a cutting-edge clinical trial after surgery removed an aggressive tumor from her brain.
California urges avoiding wild mushrooms after deaths, liver transplants
More than three dozen cases of death cap mushroom poisonings have been reported in California since November, health officials said.
See the 43 drugs available on new discounted drug site TrumpRx
Here's what to know about TrumpRx, including how it works, who can use it, and how much money it can save.
White House launches TrumpRx discounted drug site
The Trump administration launched its new TrumpRx direct-to-consumer prescription drug listing site late Thursday, part of a push to offer medication at steep discounts.
Officials warn against drinking raw milk after baby dies from listeria
The New Mexico Department of Health said officials believe the baby contracted listeria after their mother drank raw milk during pregnancy.
World
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Hungary's Orbán to attend inaugural meeting of Trump's "Board of Peace"
Hungarian Prime Minister Viktor Orbán attended the launch of the initiative last month in the Swiss ski resort of Davos.
Skier Eileen Gu sports a personalized, detail-studded ski suit at Olympics
Gu qualified for the women's slopestyle final wearing an outfit with details inspired by her Chinese heritage and her personal quirks.
Some Team USA athletes speak out about politics at home
Skier Chris Lillis said he was "heartbroken about what's happened in the United States," while skater Amber Glenn said she "will not just be quiet."
Swiss skier Franjo von Allmen wins first gold medal of Milano Cortina Games
The second gold medal of the Milano Cortina Games was awarded to Frida Karlsson of Sweden in the women's 10km+10km skiathlon.
Injured Lindsey Vonn completes final training run ahead of Olympic race
"Just because it seems impossible to you doesn't mean it's not possible," Vonn says.
Entertainment
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Entertainment
The Barr Brothers perform "Another Tangerine"
Montreal-based brothers Andrew and Brad Barr released their debut album in 2010 and have won some of Canada's top music awards for their indie sound. Performing from their first album in eight years, "Let it Hiss," here's The Barr Brothers performing "Another Tangerine."
The Barr Brothers perform "Naturally"
Montreal-based brothers Andrew and Brad Barr released their debut album in 2010 and have won some of Canada's top music awards for their indie sound. Performing from their first album in eight years, "Let it Hiss," here's The Barr Brothers performing "Naturally."
The Barr Brothers perform "Run Right Into It"
Montreal-based brothers Andrew and Brad Barr released their debut album in 2010 and have won some of Canada's top music awards for their indie sound. Performing from their first album in eight years, "Let it Hiss," here's The Barr Brothers performing "Run Right Into It."
Skier Eileen Gu sports a personalized, detail-studded ski suit at Olympics
Gu qualified for the women's slopestyle final wearing an outfit with details inspired by her Chinese heritage and her personal quirks.
Bad Bunny lyrics to know before his Super Bowl halftime show
With Bad Bunny headlining a historic Super Bowl halftime show, we highlight some of his most impactful lyrics in Spanish and English.
Technology
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Super Bowl fans warned to leave drones at home amid flight ban
The FAA says it is collaborating with the FBI to detect, track and assess unauthorized drone activity at the Super Bowl.
Ukrainian military drone simulator adapted for video gamers in world first
Gamers across the world can now recreate drone strikes in Ukraine from the comfort of their own home, with this newly released game.
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.
How will AI transform the workforce?
CBS News business analyst Jill Schlesinger talks about how companies are using artificial intelligence, the discussion around the technology and how it's impacting the workforce.
Tesla, Waymo leaders defend product safety
Executives from Waymo and Tesla defended their self-driving vehicle technology in testimony before the Senate Commerce Committee on Wednesday. CBS News' Kris Van Cleave reports and Ian Krietzberg, an AI correspondent at the digital media company Puck, has more.
Science
More Science
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.
Mysterious dark matter seen in new map of distant galaxies
Dark matter doesn't absorb or give off light so scientists can't study it directly. But they can observe how its gravity warps and bends the star stuff around it.
Cow develops technique to scratch herself
"CBS Saturday Morning" learns more about Veronika, the clever cow who figured out multiple ways to scratch herself with a broom. It was the first time a cow was seen using a tool.
Almanac: January 18
"Sunday Morning" looks back at historical events on this date.
Fossils found at Dinosaur National Monument, first excavation in 100 years
The Dinosaur National Monument, which is located on the border between Colorado and Utah, was last excavated in 1924.
Crime
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Crime
Latest in Nancy Guthrie disappearance
Authorities said Friday they were inspecting an apparent new message relating to the disappearance of "Today" host Savannah Guthrie's mom, Nancy, after the family reported her missing from her home on Sunday.
Luigi Mangione has outburst after hearing
Luigi Mangione had an outburst after a hearing on Friday in which the judge announced that his New York State trial will begin on June 8. CBS News legal reporter Katrina Kaufman is following the case.
Authorities tow car from Nancy Guthrie's home, investigate new message
Local and federal authorities said "investigators are actively inspecting the information provided in the message for its authenticity" regarding the disappearance of Nancy Guthrie.
Investigators vetting Guthrie ransom note
Friday marked six days since Nancy Guthrie's apparent abduction, and Guthrie's three children have been posting on social media hoping to reach whoever may have taken her. CBS News' Andres Gutierrez reports and former FBI counterintelligence operative Eric O'Neill has more.
Mangione claims double jeopardy
Luigi Mangione had an outburst in a New York courtroom on Friday after a judge scheduled his state trial to begin before his federal case. The UnitedHealthCare CEO murder suspect claimed "this is the same trial twice" and called it "double jeopardy." CBS News' Katrina Kaufman has more.
Space
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Space
What led NASA to delay Artemis II launch
NASA's first crewed moon mission in more than 50 years has been delayed until March at the earliest. During a routine dress rehearsal of the launch, persistent liquid hydrogen leaks were discovered in the Artemis II rocket. CBS News space consultant Bill Harwood breaks it down.
NASA hopes to fix Artemis II moon rocket leak with on-pad repair
NASA plans to test the planned leak repair with a second dress rehearsal fueling test later this month.
NASA delays Artemis II launch
NASA delayed the Artemis II moon rocket launch after a hydrogen leak was found during a wet dress rehearsal, the agency announced Tuesday. CBS News senior space consultant Bill Harwood has the latest.
NASA begins mission to map the boundaries of our heliosphere
A NASA mission is underway to map the heliosphere, which is a huge protective bubble around the solar system that was created by the sun.
NASA moon launch off until March due to issues during tests
NASA says it can't try until March at the earliest to send a crewed spacecraft on a flight around the moon and back, due to hydrogen leaks during testing of the Artemis II rocket.
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
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Latest CBS News Videos
Key storylines of Super Bowl LX
The Seattle Seahawks are set to face off against the New England Patriots on Sunday in Super Bowl LX, and "CBS Saturday Morning" goes inside key storylines to be aware of ahead of the big game.
Setting the scene at Winter Games
"CBS Saturday Morning" explores Northern Italy and breaks down the multiple locations of the Milano Cortina Winter Olympics.
Where to get the latest CBS Mornings Deals
On this edition of CBS Mornings Deals, we show you items that might just become essentials in your everyday life. Visit cbsdeals.com to take advantage of these exclusive deals today. CBS earns commissions on purchases made through cbsdeals.com.
Tips for raising your credit score
"CBS Saturday Morning" dives into ways people can raise and maintain their credit score.
White House takes down racist post
President Trump is blaming a staffer for the now-removed social media post that included a racist video of former President Barack Obama and former first lady Michelle Obama depicted as apes. Mr. Trump told reporters he is "the least racist president you've had in a long time."