Northern Hemisphere had its warmest summer ever, NOAA says
The National Oceanic and Atmospheric Administration also said 2020 is likely to be one of the five warmest years on record.
ClimateWatch: Climate Change News & Features
Oregon governor says wildfires are a "wake-up call" on climate change
More than 500,000 Oregonians are under an evacuation order and 40,000 have been forced to leave their homes.
Animal populations have declined nearly 70% since 1970, report says
World Wildlife Fund says species in Latin America and the Caribbean were disproportionately affected, declining 94% on average — and humans are to blame.
Greenhouse gas emissions back to pre-pandemic levels
Pandemic caused an unprecedented drop in the emission of greenhouse gases — but it didn't last long.
California wildfires burn 2.2 million acres — more than any year on record
California has seen over 2,650 more fires compared to this time last year — and September and October usually are the worst months for fires.
Early winter storm hits Colorado after record heat wave
Winter showed up abruptly and unusually early in Colorado after a weekend of record-shattering high temperatures.
Los Angeles County sets record high temperature as heat wave continues
Woodland Hills hit a record temperature of 121 degrees on Sunday, according to the National Weather Service.
"Really alarming" science of climate change
The Trump administration is convening a panel to dispute scientific findings that humans are the main cause of climate change. But New York magazine editor and climate columnist David Wallace-Wells says there is overwhelming evidence supporting those findings. He joined CBSN to discuss why we should be using more alarmist language to talk about climate change.
"Zombie fires" spark highest-ever carbon emissions in Arctic
Scientists said the smoke plumes were so large, they covered the equivalent of more than one-third of Canada.
Another record-breaking heat wave is building in the West
In some areas the heat will be even more intense than the historic heat wave just a couple of weeks ago.
Climate chaos suggests a more extreme future is already here
Multiple extremes resemble the chaotic climate future scientists have been warning us about for decades — only it's happening right now.
Greenland ice sheet lost a record amount of ice in 2019, study says
The ice loss in 2019 was more than twice the annual average since 2003 — shattering the previous record.
U.S. approves oil leasing plan for Alaska wildlife refuge
Alaska's Arctic National Wildlife Refuge is the home to polar bears, caribou and other wildlife.
Sweltering heat wave bakes the West
More than 50 million people will swelter in highs over 100 degrees through next week.
Greenland ice sheet claims life of renowned climate scientist
Konrad "Koni" Steffen apparently fell to his death in a crevasse on the ice sheet he dedicated his life to studying.
Brazil's leader calls Amazon fires a "lie." Images show otherwise.
Fires in the Amazon rainforest are surging as Brazil's president claims they don't exist.
In just 15 years, the Arctic Ocean may be ice-free in summer, study says
It's one of the most aggressive timelines and, if correct, is one of the more direct signs that humans are warming the Earth's climate at an even more dramatic pace than expected.
Canada's last intact Arctic ice shelf has collapsed
A 4,000-year-old chunk of ice larger than the size of Manhattan has collapsed into the Arctic Ocean.
Should we name heat waves like we name hurricanes?
Although heat waves rarely get the attention that hurricanes do, they kill far more people per year in the U.S.
Canada ice caps formed roughly 5,000 years ago are completely gone
Scientists predicted that the ice caps wouldn't completely melt until 2022.
Penguin poop spotted from space reveals hidden Antarctic colonies
But it's not all good news — the newfound colonies are all but certain to be affected by climate change.
Sea level rise could destroy 20% of the world's GDP by 2100
Nearly 300 million people around the world are likely to face repeat flooding, new study concludes.
Famously clear Lake Tahoe has been polluted by climate change
When it was measured last year, the clarity of the lake was about 80 feet — 20 years ago, it was 100 feet.
Wildfires in Siberia have burned down an area larger than Greece
Nearly 50 million acres are estimated to have burned across Russia this year — and the fires do not seem to be slowing down.
Polar bears could be wiped out by end of century
On current trends, the study concluded, polar bears in 12 of 13 subpopulations analyzed will have been decimated within 80 years.
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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Did a popular acne medication drive a Texas teen to shoot his friends?
Connor Hilton, 17, said that after taking Accutane, a prescribed acne medication, he began to have suicidal and homicidal thoughts – thoughts that, his defense argued, led him to shoot two friends in the head at his Friendswood, Texas, home. Prosecutors weren't convinced.
Nancy Pelosi to endorse Jack Schlossberg in New York congressional race
Former House Speaker Nancy Pelosi plans to endorse Jack Schlossberg, John F. Kennedy's grandson, a source familiar confirmed to CBS News.
Savannah Guthrie says "we will pay" in new plea for mother's safe return
Savannah Guthrie released a new video on Saturday, saying her family is willing to pay for the safe return of their mother.
Washington Post publisher Will Lewis resigns just days after paper enacts mass layoffs
Will Lewis, CEO and publisher of the Washington Post, has resigned just three days after the storied newspaper laid off about one-third of its staff.
Who's performing at the Super Bowl halftime show? Here's the full list
Bad Bunny is set to take the stage at halftime for the 2026 Super Bowl. Here's who else is performing at Super Bowl 60.
MoneyWatch
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Washington Post publisher Will Lewis resigns just days after paper enacts mass layoffs
Will Lewis, CEO and publisher of the Washington Post, has resigned just three days after the storied newspaper laid off about one-third of its staff.
Trump throws support behind Nexstar-Tegna broadcast deal he once opposed
Nexstar's acquisition of Tegna would bring together two companies with significant holdings in local broadcast media.
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.
Politics
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Nancy Pelosi to endorse Jack Schlossberg in New York congressional race
Former House Speaker Nancy Pelosi plans to endorse Jack Schlossberg, John F. Kennedy's grandson, a source familiar confirmed to CBS News.
Trump throws support behind Nexstar-Tegna broadcast deal he once opposed
Nexstar's acquisition of Tegna would bring together two companies with significant holdings in local broadcast media.
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.
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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Ilia Malinin stunned by Yuma Kagiyama in Olympic figure skating short program
The U.S. ended Saturday in first place with 44 points. Japan was five points back going into the men's, women's and pairs free skates to decide the medals Sunday.
Jake Paul joins JD Vance to watch U.S. women's hockey team at Olympics
The U.S. women's hockey team eased to a 5-0 win over Finland on Saturday afternoon.
Italy nabs first gold medal of Milano Cortina Olympics in speedskating upset
Francesca Lollobrigida set a new Olympic record of 3 minutes, 54.28 seconds, shaving more than two-and-a-half seconds off the mark set by Dutch legend Irene Schouten four years earlier in Beijing.
4 suspects arrested after bombing at Pakistan mosque leaves 31 dead
Friday's attack was the deadliest suicide bombing in Islamabad in nearly 20 years.
U.S. speedskater Greta Myers learned of Olympic debut hours before race
U.S. speed skater Greta Myers learned about her Olympic debut in the 3000m three hours before the race was due to begin.
Entertainment
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Brad Arnold, 3 Doors Down founder and lead singer, dies at 47
Brad Arnold, the founder and lead singer of the 3 Doors Down has died following "his courageous battle with cancer," the rock band announced Saturday on social media.
Who's performing at the Super Bowl halftime show? Here's the full list
Bad Bunny is set to take the stage at halftime for the 2026 Super Bowl. Here's who else is performing at Super Bowl 60.
Twisted Sister cancels reunion shows as frontman Dee Snider resigns
Lead singer and frontman Dee Snider said he suffers from degenerative arthritis and has had several surgeries over the years.
Best books for Valentine's Day
Sarah Gelman, editorial director at Amazon Books, joins "CBS Saturday Morning" to recommend some of the best books to read around Valentine's Day.
Super Bowl food that's bound to go viral
Super Bowl chefs spend an entire year developing the menu for the big game, and "CBS Saturday Morning" gets a sneak peek at some of the mouth-watering options.
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
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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
More Crime
Did a popular acne medication drive a Texas teen to shoot his friends?
Connor Hilton, 17, said that after taking Accutane, a prescribed acne medication, he began to have suicidal and homicidal thoughts – thoughts that, his defense argued, led him to shoot two friends in the head at his Friendswood, Texas, home. Prosecutors weren't convinced.
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.
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
Diving into Hilary Knight career at final Olympics
Ice hockey forward Hilary Knight showed the world why she's one of the greatest players ever. With her 14th goal, the captain of Team USA moved into a tie for the most goals scored by a U.S. Women's hockey player at the Winter Olympics. Andres Gutierrez reports on her career and her last Olympic run.
Levi's aims to share their story at their stadium
The countdown is on for the big game between the Seattle Seahawks and the New England Patriots. Kris Van Kleave is outside what's been called the Field of Jeans.
What to know after first full day of the Olympics
Saturday marked the first full day of the Olympic Winter Games in Italy. Switzerland took the first gold medal in men's downhill skiing. In all, five medal events were held, but no gold yet for Team USA. Seth Doane has the latest details from Cortina, Italy.
Fallout over Epstein files escalates in the U.K.
The political fallout in Britain following the latest Epstein documents release became so intense that on Saturday, there were growing calls for the U.K.'s prime minister to step down.
Trump refuses to apologize for racist video
President Trump refused to apologize after sharing a racist video on Truth Social and then later taking it down. Willie James Inman has more.