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
NIPTON, CA - AUGUST 26: In an aerial view, a boiler tower is surrounded by mirrors at the Ivanpah Solar Electric Generating System in the Mojave Desert on August 26, 2022 near Nipton, California. As drought, wildfires and monsoonal desert flash floods worsen in California, the development of solar energy farms has become prioritized as a means to lessen some of the worst impacts of human-caused climate change. Ironically, this "green energy" is harming the environment as it sprawls across pristine desert land, which stores carbon in the ground. California deserts account for nearly 10 percent of the states carbon sequestration. The Ivanpah Solar Electric Generating System is one of the biggest but has been challenged by reports that thousands of birds have been incinerated mid-flight by intense heat in the concentrated sun rays that are reflected to giant boiler towers. (Photo by David McNew/Getty Images)
David McNew/Getty Images
This alien-like field of mirrors in the desert was once the future of solar energy. It’s closing after just 11 years
John Hammond, director of research at the UK’s Pirbright Institute.
Ingrid Weel
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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
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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

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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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Explore

Fumes rise from the coal-fired Hunter Power Plant in Castle Dale, Utah, October 28, 2024.
Jim Urquhart/Reuters
Trump EPA proposes repealing major air pollution and emissions limits for power plants
TOPSHOT - An aerial view of pancake ice and melt on July 19, 2022 as captured on a NASA Gulfstream V plane while on an airborne mission with University of Texas scientists to measure melting Arctic seaice. New observations from ICESAT-2 show remarkable Arctic Sea ice thinning in just three years. Over the past two decades, the Arctic has lost about one-third of its winter sea ice volume, largely due to a decline in sea ice that persists over several years, called multiyear ice, according to a new study. The study also found sea ice is likely thinner than previous estimates. (Photo by Kerem Yücel / AFP) (Photo by KEREM YUCEL/AFP via Getty Images)
Kerem Yücel/AFP/Getty Images
Scientists mapped what happens if a crucial system of ocean currents collapses. The weather impact would be extreme
The Sun shines through the pine trees in a coniferous forest in Canterbury, New Zealand, in 2020.
Jorge Fernández/LightRocket/Getty Images/File
New Zealand government sued over ‘inadequate’ plan to reduce emissions
TOPSHOT - A police officer speaks to Swedish climate activist Greta Thunberg moments before she was arrested outside the InterContinental London Park Lane during the "Oily Money Out" demonstration organised by Fossil Free London and Greenpeace on the sidelines of the opening day of the Energy Intelligence Forum 2023 in London on October 17, 2023. (Photo by HENRY NICHOLLS / AFP) (Photo by HENRY NICHOLLS/AFP via Getty Images)
Henry Nicholls/AFP/Getty Images
Greta Thunberg Fast Facts
After landslide, closer view of Batten, Switzerland, May 29, 2025.
Maxar Technologies
Mountains are among the planet’s most beautiful places. They’re also becoming the deadliest
An aerial image of Consumer Energy's J.H. Campbell Generating Complex in Ottawa County, Mich., Sept. 21, 2024.
Joel Bissell/Kalamazoo Gazette/AP
The Trump admin ordered a coal power plant to stay on past retirement. Customers in 15 states will foot the bill
The GISS facility is located at Columbia University’s Armstrong Hall in New York City.
Robert Schmunk/GISS/NASA
NASA scientists describe ‘absolute sh*tshow’ at agency as Trump budget seeks to dismantle top US climate lab
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Aung Chan Thar/Fotografiska
Striking images showing environmental destruction aim to ‘inspire action’
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CNN
Video The Kingdom that burns to bloom 2:32
Hikers visit an ice cave formed at the end section of the Zinal glacier, above the alpine village of Zinal, Switzerland, Saturday, Nov. 13, 2021.(Valentin Flauraud/Keystone via AP)
Valentin Flauraud/AP
Nearly 40% of the world’s glaciers are already doomed, scientists say
Water from the Colorado River Basin irrigates a field of alfalfa growing in Beaver, Utah on June 29, 2024.
RJ Sangosti/MediaNews Group/The Denver Post/Getty Images
The Colorado River Basin has lost as much groundwater as the entire volume of Lake Mead
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Reuters
Video Glacier partially collapses and buries Swiss village 0:45
A general view of sea ice in the arctic ocean close the coast of Svalbard, Norway, in April 2023.
Lisi Niesner/Reuters/File
Five-year forecast paints a troubling picture of extreme weather and deadly heat
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Save our Songlines
Ancient rock art under threat as Australia gives ‘proposed’ approval to gas plant extension
A meteorologist monitors weather activity on a computer screen at the National Oceanic and Atmospheric Administration (NOAA) Center for Weather and Climate Prediction headquarters in College Park, Maryland, US, on Thursday, Dec. 5, 2024. The conservative Project 2025 roadmap calls for slashing NOAA funding at a time when China is investing heavily in climate research. Photographer: Michael A. McCoy/Bloomberg via Getty Images
Michael A. McCoy/Bloomberg/Getty Images
Climate and weather scientists are joining the anti-Trump resistance in the most ‘scientist-iest’ way
ROBERTSON COUNTY, TEXAS - APRIL 29: Emissions fume at the coal-fueled Oak Grove Power Plant on April 29, 2024 in Robertson County, Texas. In conjunction with the Biden-Harris Administration's attempt to curve climate change, the EPA (Environmental Protection Agency) has finalized four new rules which seek to reduce carbon emissions and mercury pollution amongst businesses and communities. Environmental regulators favor the decision, believing that the rules provide clear instruction and time allotment for power companies to begin finding solutions in providing reliable power while reducing harmful emissions. Industry groups have pushed back, stating that the change is coming at a time when more gas-fueled power is paramount. (Photo by Brandon Bell/Getty Images)
Brandon Bell/Getty Images
Trump EPA drafting a rule that would undo decades of progress on limiting pollution from power plants