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.
ClimateWatch: Climate Change News & Features
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.
"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.
Canada ice caps formed roughly 5,000 years ago are completely gone
Scientists predicted that the ice caps wouldn't completely melt until 2022.
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.
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.
Administration moves to squash socially responsible investing
Financial advisers worry a new rule will divert 401(k) funds from profitable environmental investments into fossil fuels.
Arctic heat wave "essentially impossible" without climate change
A town in Siberia recently hit a record 100.4 degrees Fahrenheit, and scientists say the role of climate change is "truly staggering."
Death Valley sets record for planet's hottest temperature in years
The brutal heat wave baking the Southwest and lower Plains states is going to move east and north to engulf much of the nation this week.
"Watermelon snow" in Italian Alps may be climate change red flag
The bizarre pink snow can accelerate snow melt in the fragile mountain region.
Science
Neil deGrasse Tyson on why he's still waiting for proof of aliens
Neil deGrasse Tyson explains why, despite believing life likely exists elsewhere, he's still waiting for real proof.
Neil deGrasse Tyson on new book
Astrophysicist Neil deGrasse Tyson joins "CBS Mornings" to discuss his updated book "Just Visiting This Planet," which tackles more than 200 questions about science and the universe — including why the sky is blue.
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.
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.
Bear injures 2 in Japanese grocery store, man killed in separate attack
As Japan faces rising human-bear encounters, an animal trapped in a grocery store injured two men, while a separate reported mauling proved fatal.
Interstellar comet passing by Mars seen in rare images
The images taken by two Mars orbiters show a bright, fuzzy white dot of the comet, also known as 3I/ATLAS, appearing to move against a backdrop of distant stars.
Nobel in Physics goes to 3 scientists for work on quantum technology
One of 2025's three Nobel Prize in Physics winners says the trio's work is "one of the underlying reasons that cellphones work.''
Bill Nye warns U.S. could "cede leadership to other countries" if NASA budget is cut
Bill Nye the Science Guy on Monday protested against a federal budget proposal that would see NASA's funding reduced from $24 billion to $18.8 billion.
3 scientists win Nobel Prize in medicine for discoveries in immunology
Nobel Prize committee chair says discoveries by the trio of researchers were "decisive for our understanding of how the immune system functions."
Supermoon will appear tonight. Here's what to know.
The first supermoon of 2025 will arrive soon. Here's what to know about the phenomenon.
Mysterious planet is gobbling 6 billion tons of gas and dust a second
ESO's Very Large Telescope has observed a rogue planet and revealed that it is eating up gas and dust from its surroundings at a rate of 6 billion tons a second.
Saturn's moon shows favorable conditions for life: "Simply phenomenal"
Enceladus has long been considered a prime candidate in the search for life beyond Earth because of its hidden ocean and plumes of water erupting from cracks near its south pole.
From the archives: Naturalist Jane Goodall
Famed naturalist Jane Goodall, who dedicated her life to studying chimpanzees and protecting the environment, died on Wednesday, Oct. 1, 2025 at age 91. In this Oct. 24, 2021 "Sunday Morning" profile, she talked with Seth Doane about her fascination with animals, her groundbreaking work with primates, and her advocacy for a more sustainable future.
Bermuda braces for Hurricane Imelda after a brush with Humberto
The outer bands of Humberto lashed Bermuda ahead of a more direct pass from the newer and stronger Hurricane Imelda.
Why crickets are as good as a thermometer
The chirping of crickets in your backyard can be a soothing seasonal sound, but did you know it's also an accurate way to tell the temperature – if you know the mathematical formula? Robert Krulwich and puppeteer Barnaby Dixon explain.