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John Hession Photography
These sleek, sustainable homes are breaking the stereotype for prefab construction
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AARON CHERRIE PHOTOGRAPHY
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A bank of fans draws air through specialized filters at Climeworks' Mammoth carbon removal plant on May 24, 2024 in Reykjavik, Iceland.
John Moore/Getty Images
This company says its technology can help save the world. It’s now cutting 20% of its staff as Trump slashes climate funding
A person works on the cryostat base of the fusion reactor inside the tokamak hall at Commonwealth Fusion Systems in Devens, Mass. on April 10, 2025. CFS has built 60% of its demonstration fusion reactor in the Boston suburbs – a giant machine powered by magnets that heats plasma up to over 100 million degrees, and plans to demonstrate more power out than in from fusion reaction by 2027.
Sophie Park for CNN
A nuclear fusion power plant prototype is already being built outside Boston. How long until unlimited clean energy is real?
A worker carries a solar panel plate at a market in Lahore on June 12, 2024. Pakistan's Finance Minister Muhammad Aurangzeb is due to present the country's annual federal budget for the fiscal year 2024-2025 before the National Assembly on June 12. (Photo by Arif ALI / AFP) (Photo by ARIF ALI/AFP via Getty Images)
Arif Ali/AFP/Getty Images
How Pakistan pulled off one of the fastest solar revolutions in the world
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Plymouth Marine Laboratory
UK project trials carbon capture at sea to help tackle climate change
This photograph taken on September 2, 2018 shows a beach view in Ewa on the Pacific island of Nauru. - A cluster of corrugated iron huts resembling military barracks jut out of Nauru's sweltering rocky landscape to reveal refugee settlement camp number five, a place defined by desperation and rarely visited by outsiders. (Photo by Mike LEYRAL / AFP) (Photo credit should read MIKE LEYRAL/AFP via Getty Images)
Mike Leyral/AFP/Getty Images
A tiny island country is selling citizenship for $105,000 to save itself from rising seas
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Natalie Ingle
A forest the size of Mexico could store twice as much carbon as was thought. That makes its conservation even more valuable
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DRIFT Energy
‘Fishing boat for energy’ will make hydrogen as it sails
Panorama view of the Swiss Alps - Canton of Grisons in Eastern Switzerland, a potential natural H2 exploration area.
Frank Zwaan/GFZ
Vast reserves of game-changing clean fuel may be hidden under mountain ranges, scientists find

Features

Summer Ship Tracks in the Pacific August 26, 2018 In August 2018, long, narrow clouds stood out against the backdrop of marine clouds blanketing much of the North Pacific Ocean. Known as ship tracks, the distinctive clouds form when water vapor condenses around the tiny particles emitted by ships in their exhaust. Ship tracks typically form in areas where thin, low-lying stratus and cumulus clouds are present. ... The Moderate Resolution Imaging Spectroradiometer (MODIS) on Aqua captured this natural-color image of several ship tracks extending northward on August 26, 2018. The clouds were located about 1,000 kilometers (600 miles) west of the California-Oregon border. Similar environmental conditions also triggered the formation of ship tracks in this part of the Pacific on August 27 and 28.
Lauren Dauphin/NASA Earth Observatory/MODIS data from LANCE/EOSDIS Rapid Response
The world successfully tackled a dangerous pollutant. But did it accidentally warm the planet in the process?
Rendering of the Equatic 3,650tpa CDR plant under construction in Singapore.
Equatic
Can this ocean-based carbon plant help save the world? Some scientists are raising red flags
US Russia China nuclear race photo illustration
Photo-illustration: CNN/Getty Images/Maxim Shemetov/Reuters
New-wave reactor technology could kick-start a nuclear renaissance — and the US is banking on it
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CNN/Adobe Stock
Nearly 30,000 objects are hurtling through near-Earth orbit. That’s not just a problem for space

Watch

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CNN
Video How Norway’s sheep herders are helping to conserve coastal heathlands 3:12
Susan Wong in Lai Chi Wo, Hong Kong. Nov 17 2024.
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Tom Booth/CNN
Video Hong Kong’s hidden Hakka village 5:22
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Video Santa Barbara’s Chumash people blend ancient wisdom with modern innovation 3:50

Explore

The flooded Guadalupe River in Kerrville, Texas, on Friday, July 4, 2025. When catastrophic floodwaters surged through Kerr County last week, there were no sirens or early flooding monitors -- instead, there were text alerts that came late for some residents and were dismissed or unseen by others. (Carter Johnston/The New York Times)
Carter Johnston/The New York Times/Redux
Texas flood disaster shows elevation is salvation and new codes are needed
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CNN
Video How climate change made Texas flooding more violent 1:35
A tourist drinks water during a heatwave in Thessaloniki on July 8, 2025. A four-day heatwave confirmed by meteorologists began in Greece on July 6, is the second to grip Greece since late June. Temperatures are expected to reach 42 Celsius (107.6 Fahrenheit), with a maximum of 38 Celsius in Athens and increase as the week continues.
Sakis Mitrolidis/AFP/Getty Images
Extreme heat is a killer. A recent heat wave shows how much more deadly it’s becoming
Left to right: Steven E. Koonin, John Christy, and Roy Spencer.
Bloomberg/Roll Call/Getty Images/The New York Times/Redux
The Trump admin just hired 3 outspoken climate contrarians. Scientists are worried what comes next
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CNN
Children’s camps in Texas were located in areas known to be at high risk of flooding
KERRVILLE, TEXAS - JULY 05: Flood waters left debris including vehicles and equipment scattered in Louise Hays Park on July 5, 2025 in Kerrville, Texas. Heavy rainfall caused flooding along the Guadalupe River in central Texas with multiple fatalities reported. (Photo by Eric Vryn/Getty Images)
Eric Vryn/Getty Images
Beleaguered Weather Service defends its forecasts as Texas officials point fingers over flood warnings
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CNN
See how your energy prices will change because of the GOP tax bill
Lee Zeldin testifies before a Senate Environment and Public Works Committee hearing on his nomination to be Administrator of the Environmental Protection Agency, on Capitol Hill in Washington, DC, on January 16, 2025.
Ting Shen/AFP/Getty Images
EPA suspends and investigates around 140 employees who signed a letter critical of the agency
Visitors take in the scenery from Tunnel View in Yosemite National Park, Calif., on Tuesday, May 20, 2025. On Memorial Day Weekend, visitors will be required to make reservations. (Photo by Carlos Avila Gonzalez/San Francisco Chronicle via Getty Images)
Carlos Avila Gonzalez/San Francisco Chronicle/Getty Images
‘Hire back park staff’: Visitors feel the pinch of Trump’s layoffs at National Park Service
Fire burns in the Ahlia area near the port town of Ierapetra on the south coast of Crete island, Greece, late Wednesday, July 2, 2025, prompting the evacuation of villages and hotels in the region, authorities said.
InTime News/AP
Wildfires are tearing through a popular tourist hotspot in Greece, forcing mass evacuations
TOPSHOT - Smoke billows from the Airport Fire in Rancho Santa Margarita, California on September 9, 2024. Wildfires fueled by soaring temperatures in the western United States have scorched thousands of acres, forcing hundreds of families to flee, US officials said September 9, 2024. A blaze burning out of a control near Los Angeles sparked mandatory evacuations as it tore through swathes of tinder-dry California countryside around popular tourist spots. (Photo by Patrick T. Fallon / AFP) (Photo by PATRICK T. FALLON/AFP via Getty Images)
Patrick T. Fallon/AFP/Getty Images
Congressionally mandated climate reports disappeared from their federal websites
MADRID, SPAIN - JULY 14: Air conditioning units are seen on the exterior of apartment buildings as temperatures continue to soar on July 14, 2022 in Madrid, Spain. Europe is currently experiencing the most sustained period of extreme hot weather in 50 years. (Photo by Pablo Blazquez Dominguez/Getty Images)
Pablo Blazquez Dominguez/Getty Images
European summers are getting brutally hot. So why is air conditioning so rare?
Post-extinction lycopod sporophyll.
Dr. Zhen Xu
The ‘Great Dying’ wiped out 90% of life, then came 5 million years of lethal heat. New fossils explain why
FILE - This 2019 photo provided by NOAA shows the Mauna Loa Atmospheric Baseline Observatory, high atop Hawaii's largest mountain in order to sample well-mixed background air free of local pollution. Mauna Loa’s volcano eruption has temporarily knocked off power to the world’s premier station that measures heat-trapping carbon dioxide in the atmosphere, but officials said that there are hundreds of other carbon dioxide monitoring sites across the globe. (Susan Cobb/NOAA Global Monitoring Laboratory via AP, File)
Susan Cobb/NOAA Global Monitoring Laboratory via AP
Trump admin tries to kill the most indisputable evidence of human-caused climate change by shuttering observatory
Windmills are seen in Mojave, California, in 2014.
Lucy Nicholson/Reuters/File
Republicans introduce last-minute industry ‘killer’ tax on solar and wind in spending bill
A person works on the cryostat base of the fusion reactor inside the tokamak hall at Commonwealth Fusion Systems in Devens, Massachusetts, on April 10. A full-sized image of the tokamak is superimposed onto the wall.<br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br />
Sophie Park for CNN
Google just bought 200 megawatts of fusion energy that doesn’t even exist yet