Obama hails historic deal to slow global warming
Almost every country in the world promised to reduce greenhouse gas emissions
ClimateWatch: Climate Change News & Features
Climate negotiators strike deal to slow global warming
Almost every country in the world promises to reduce greenhouse gas emissions
Paris climate talks go into overtime
One of the sticking points: Who should pay for damages caused by climate change?
World's most ambitious tidal power project underway in Scotland
Underwater turbines could soon produce electricity, which supporters say is a better alternative to solar and wind power
Study sees possible dip in world carbon emissions
Report of a decline in China's pollution coincides with Beijing's worst smog alert in history
Pollution brings 1st-ever "red alert" in Beijing
Highest-level warning as smog blankets Chinese capital, sending worried parents to hospitals and raising questions about why it wasn't done sooner
World leaders move closer to climate deal
There are some signs of progress at the Paris climate talks - but differences remain and the clock is ticking
Obama: "You can't build a border wall" to stop climate change
President details why he considers it the world's "greatest threat" and how he hopes to make the fight a part of his legacy
Why the Paris climate change talks could flop
Despite all the good intentions at the COP21 summit, a range of factors could sabotage plans to fight global warming
How climate change became so politicized
Climate change is "easy to demonize," says Republican who once headed the EPA
Technology that could disrupt the course of climate change
From next-gen solar energy to sending sun-blocking aerosols to the atmosphere, could tech innovations be the answer to climate change?
Electric cars: Norway's latest climate-friendly trend
The Norwegian government is encouraging drivers to buy electric cars by offering incentives that are hard to turn down
Obama calls climate change an "imperative" despite terror threat
The president explained why the world is focusing on climate amid a terror threat before leaving the Paris climate talks
Paris climate talks: What comes next?
The success of the summit largely depends on how seriously countries take the commitments they have made
Paris Climate Summit: What you need to know
Representatives from around the globe are gathering for a major two-week summit on slowing global warming
What is COP21? Mysterious acronyms of Paris climate talks
UNFCCC? AOSIS? How to decipher the coded language of the climate talks
Extreme photos of pollution
These pictures illustrate the importance of reducing greenhouse emissions and curbing the flow of harmful pollutants into the environment
Extreme weather threats
In the last two decades weather-related disasters claimed more than 600,000 lives and affected more than 4.1 billion people, according to the UN
World leaders kick off Paris climate summit
The Paris terror attacks cast a long shadow over the start of the two-week summit on slowing global warming
Unlocking climate change secrets in the frozen north
A young American scientist is in on remote Norwegian islands, where global warming is happing faster than anywhere else
As leaders meet, pollution "beyond index" in Bejing
World Health Organization says maximum safe air quality index is 25, today in the Chinese capital it hit 608
Global warming and the Paris climate change conference
CBS News/New York Times polled Americans on global warming and the environment, ahead of the climate change conference in Paris
Why 2 degrees are so important to the climate
Paris climate talks aim to stop the Earth from warming more than 2 degrees Celsius; here's the story behind that number
World rallies for action against climate change
Hundreds of thousands take part in rallies around the globe on the eve of the COP21 climate conference in Paris, calling on leaders to halt climate change
U.N.: 2015 is the hottest year on record
Things are so bad, the World Meteorological Organization made the proclamation without waiting for the end of the year
Science
Science
Scientists discover new dinosaur species
Mars rover sets new driving record on surface of another world
Extreme heat putting births in jeopardy, U.N. climate chief warns
Neuroscientists grow human brain tissue in mice
New species of wild cat discovered for first time in more than a century
Humpback whale seen grieving dead calf in rare footage
Remains of ancient warhorse given honorific burial discovered in Egypt
Anthropic CEO says "exponential" growth of AI is a "warning sign"
First-ever adult T. rex trackway found in North Dakota
Ig Nobel prizes go to scientists studying cockroach milk, nose-blowing, more
Vote on the fattest marmot now
NASA plans to launch new space telescope
Invasive Joro spiders are "slowly spreading." Here's what to do if you see one.
A summer of extremes: Weathering a hotter world
