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By Issy Ronald, CNN London (CNN) — Environmental activists in the UK painted Charles Darwin’s grave in Westminster Abbey on Monday with the words “1.5 is dead,” referencing the critical climate threshold that the world temporarily passed in 2024. The two Just Stop Oil activists entered London’s Westminster Abbey, where Darwin is buried alongside some

By Jacopo Prisco and Evan John, CNN (CNN) — Japan’s population is the oldest in the world, with a third aged over 65, and one in 10 aged over 80, due to a combination of low fertility rates and high life expectancy. This has a direct effect on its working-age population — the share of

By Jackie Wattles, CNN (CNN) — Blue Origin, the rocket company founded by Jeff Bezos in 2000, has called off a second attempt to launch its 30-story New Glenn rocket. The vehicle had been slated to get off the ground early Monday, but the company waved off that plan so engineers could work to address

By Ashley Strickland, CNN (CNN) — One of the best ways to assemble the puzzle pieces of Earth’s past is hiding deep beneath its white polar sheets: ice cores. These frozen time capsules preserve air bubbles from thousands of years ago, painting a picture of climate and environmental conditions at the time to reveal how

By Ashley Strickland, CNN (CNN) — An international research team has successfully drilled and retrieved a 9,186-foot-long (2,800-meter-long) ice core from Antarctica that dates back 1.2 million years. The sample extended so deep that it reached the bedrock beneath the Antarctic Ice Sheet. The core, nearly as long as 25 soccer fields end to end

By Ella Nilsen, CNN (CNN) — Hardening a home against wildfires doesn’t need to take thousands of dollars for a fire-resistant roof or siding, a California wildfire expert told CNN. “It can be the smallest changes” that are simple and inexpensive, said Lenya Quinn-Davidson, a fire advisor and the Director of University of California Agriculture

By Ashley Strickland, CNN (CNN) — For decades, astronomers have tried to determine how Pluto acquired its unusually large moon Charon, which is about half the size of the dwarf planet. Now, new research suggests that Pluto and Charon briefly came together billions of years ago in a newly discovered “kiss and capture” collision. Scientists

By Mary Gilbert and Angela Fritz, CNN (CNN) — Southern California was under water less than a year ago. A siege of torrential rain from atmospheric rivers started in December and reached a crescendo in early February when nearly a foot fell in Los Angeles. It was a deadly winter of storms that flooded roads,

By Julianna Bragg, CNN (CNN) — Scientists have unearthed nearly 200 dinosaur footprints, dating back 166 million years to the Middle Jurassic Period, at Dewars Farm Quarry in Oxfordshire, England. The remarkable find, first spied in 2023 when quarry worker Gary Johnson sensed “unusual bumps” on the ground while extracting limestone for road construction, has

By Ashley Strickland, CNN (CNN) — Two new potential strategies for returning crucial samples from Mars to Earth by the 2030s are now on the table, according to NASA. The proposals present alternatives to the original Mars Sample Return program. Designed by NASA and the European Space Agency, the initial plan was deemed unwieldy after

By Laura Paddison, CNN (CNN) — On Tuesday, Donald Trump Jr. landed in Greenland, the Arctic island his father, President-elect Donald Trump, has expressed a strong desire to purchase, despite sharp statements from Greenland that it is not for sale. Trump Jr. framed the trip as “a little bit of fun,” telling CNN, “as an

By Julianna Bragg, CNN (CNN) — Tahlequah, the mother orca denoted as J35 who captured hearts worldwide in 2018 by carrying her dead calf for 17 days and over 1,000 miles (1,600 kilometers), is once again displaying a similar act of mourning. Her newest calf, a female known as J61 to researchers, was first spotted

By Ella Nilsen, CNN (CNN) — President Joe Biden will declare two new national monuments in California on Tuesday in what will be one of his final, legacy-cementing actions to protect American land and water before he cedes the White House to President-elect Donald Trump. Biden will establish the Chuckwalla National Monument in Southern California

By Laura Paddison, CNN (CNN) — A group of potentially toxic “forever chemicals,” mostly coming from prescribed drugs, may be contaminating drinking water for millions of Americans, as wastewater treatment plants fail to remove them — and climate change may be making the situation even worse, according to a new report. Scientists analyzed water samples

By Jackie Wattles, CNN (CNN) — On a Florida launchpad that has been dormant for almost two decades, a new, roughly 320-foot (98-meter) rocket — developed by Jeff Bezos’ company Blue Origin — is poised for its maiden flight. The uncrewed launch vehicle, called New Glenn, will mark Blue Origin’s first attempt to send a

By Ashley Strickland, CNN (CNN) — Exploring space has opened our eyes to numerous wonders, but these cosmic feats haven’t come without challenges. Each SpaceX Starship launch from South Texas creates a stunning spectacle, previewing maneuvers that could one day be used to carry humans to Mars. But the most powerful rocket ever built also

By Mindy Weisberger, CNN (CNN) — An unknown volcano erupted so explosively in 1831 that it cooled Earth’s climate. Now, nearly 200 years later, scientists have identified the “mystery volcano.” The eruption was one of the most powerful of the 19th century, spewing so much sulfur dioxide into the stratosphere that annual average temperatures in

By Ashley Strickland, CNN (CNN) — The new year kicks off with the peak of the Quadrantids, one of the strongest meteor showers of the year, according to NASA. But keep your eyes peeled because with a peak only lasting about six hours, as opposed to multiple days, the Quadrantids are also one of the