https://www.sciencedaily.com/news/earth_climate/ice_ages/ Read science articles on the ice age, glaciation and climatology. Discover the connection between ice ages and global warming. en-us Thu, 12 Mar 2026 07:34:05 EDT Thu, 12 Mar 2026 07:34:05 EDT 60 https://www.sciencedaily.com/images/scidaily-logo-rss.png https://www.sciencedaily.com/news/earth_climate/ice_ages/ For more science news, visit ScienceDaily. https://www.sciencedaily.com/releases/2026/03/260311213444.htm Scientists at Curtin University have uncovered a new way to read the deep history of Earth’s landscapes using microscopic zircon crystals from ancient beach sands. These incredibly durable minerals trap traces of krypton gas created when cosmic rays strike them at Earth’s surface, effectively turning each crystal into a “cosmic clock.” By measuring that krypton, researchers can determine how long sediments lingered near the surface before burial, revealing how landscapes eroded, shifted, and stabilized over millions of years. Thu, 12 Mar 2026 01:53:19 EDT https://www.sciencedaily.com/releases/2026/03/260311213444.htm https://www.sciencedaily.com/releases/2026/03/260309183208.htm Global warming has picked up speed in the past decade, according to a new analysis from the Potsdam Institute for Climate Impact Research (PIK). By removing short term natural influences such as El Niño, volcanic eruptions, and solar cycles from temperature records, researchers uncovered a clear acceleration in the planet’s long term warming trend beginning around 2015. Mon, 09 Mar 2026 20:26:55 EDT https://www.sciencedaily.com/releases/2026/03/260309183208.htm https://www.sciencedaily.com/releases/2026/03/260306224213.htm Gravity may seem constant, but it actually varies across the planet—and one of the strangest places is Antarctica, where gravity is slightly weaker than expected. Scientists have traced this “gravity hole” to slow, deep movements of rock inside Earth that unfolded over tens of millions of years. Using earthquake data to essentially create a CT scan of the planet’s interior, researchers reconstructed how the anomaly evolved and discovered that it strengthened between about 50 and 30 million years ago. Sat, 07 Mar 2026 00:45:53 EST https://www.sciencedaily.com/releases/2026/03/260306224213.htm https://www.sciencedaily.com/releases/2026/03/260304184229.htm Ocean temperatures may be quietly protecting the world from a global drought catastrophe. By analyzing more than a century of climate data, researchers discovered that droughts rarely spread across the planet at the same time, affecting only about 1.8%–6.5% of global land simultaneously—far less than earlier estimates. The reason lies largely in shifting ocean patterns such as El Niño and La Niña, which create a patchwork of drought conditions across continents instead of one massive worldwide dry spell. Thu, 05 Mar 2026 15:51:47 EST https://www.sciencedaily.com/releases/2026/03/260304184229.htm https://www.sciencedaily.com/releases/2026/03/260303201755.htm Northern wildfires may be more dangerous for the climate than they appear. Researchers found that fires in boreal forests can burn deep into peat soils, releasing ancient carbon stored for hundreds or thousands of years. These slow, smoldering fires often look small from space, causing climate models to underestimate their emissions. Wed, 04 Mar 2026 12:50:50 EST https://www.sciencedaily.com/releases/2026/03/260303201755.htm https://www.sciencedaily.com/releases/2026/03/260302030644.htm K’gari’s iconic lakes have existed for tens of thousands of years—but they haven’t always been full. New research shows that about 7,500 years ago, during a time of high rainfall, several of the island’s deepest lakes mysteriously vanished. Scientists believe changing wind patterns may have redirected rain away from the island. As the climate shifts again, the lakes’ long-term survival is no longer guaranteed. Mon, 02 Mar 2026 11:27:11 EST https://www.sciencedaily.com/releases/2026/03/260302030644.htm https://www.sciencedaily.com/releases/2026/02/260228082714.htm A popular climate theory suggested that melting Antarctic glaciers would release iron into the ocean, sparking algae blooms that pull carbon dioxide from the air. New field data from West Antarctica reveal that meltwater provides far less iron than scientists once believed. Instead, most of the iron comes from deep ocean water and sediments, not from the melting ice itself. The discovery raises new questions about how Antarctica influences climate change. Sat, 28 Feb 2026 09:59:08 EST https://www.sciencedaily.com/releases/2026/02/260228082714.htm https://www.sciencedaily.com/releases/2026/02/260226042454.htm Antarctica’s Hektoria Glacier stunned scientists by retreating eight kilometers in just two months, with nearly half of it collapsing in record time. The rapid breakup was driven by a flat, underwater bedrock surface that allowed the glacier to suddenly float and fracture from below. Satellite and seismic data captured the dramatic chain reaction in near real time. The findings raise concerns that much larger glaciers could one day collapse just as quickly. Thu, 26 Feb 2026 11:47:11 EST https://www.sciencedaily.com/releases/2026/02/260226042454.htm https://www.sciencedaily.com/releases/2026/02/260224023221.htm Earth’s magnetic shield is shifting in dramatic ways. New data from ESA’s Swarm satellites show that the South Atlantic Anomaly — a vast weak spot in Earth’s magnetic field — has grown by nearly half the size of continental Europe since 2014. Even more striking, a region southwest of Africa has begun weakening even faster in recent years, hinting at unusual activity deep within Earth’s molten outer core. Wed, 25 Feb 2026 10:45:43 EST https://www.sciencedaily.com/releases/2026/02/260224023221.htm https://www.sciencedaily.com/releases/2026/02/260224023201.htm Deep in the Congo Basin, vast peatlands quietly store enormous amounts of Earth’s carbon — but new research suggests this ancient vault may be leaking. Scientists studying Africa’s largest blackwater lakes discovered that significant amounts of carbon dioxide bubbling into the atmosphere come not just from recent plant life, but from peat that has been locked away for thousands of years. Tue, 24 Feb 2026 08:16:20 EST https://www.sciencedaily.com/releases/2026/02/260224023201.htm https://www.sciencedaily.com/releases/2026/02/260222092321.htm A new 30-year analysis reveals that melting land ice is now the main force behind rising global sea levels. Researchers discovered that oceans rose about 90 millimeters since 1993, with most of the increase coming from added water mass rather than just warming expansion. Ice loss from Greenland and mountain glaciers accounts for the vast majority of this gain. Even more concerning, the rate of sea-level rise is accelerating. Tue, 24 Feb 2026 00:08:38 EST https://www.sciencedaily.com/releases/2026/02/260222092321.htm https://www.sciencedaily.com/releases/2026/02/260221000325.htm Deep in the Arctic north, drained peatlands—once massive carbon vaults built over thousands of years—are quietly leaking greenhouse gases into the atmosphere. But new field research from northern Norway suggests there’s a powerful way to slow that loss: raise the water level. In a two-year study, scientists found that restoring higher groundwater levels in cultivated Arctic peatlands dramatically cut carbon dioxide emissions, and in some cases even tipped the balance so the land absorbed more CO₂ than it released. Sun, 22 Feb 2026 02:51:51 EST https://www.sciencedaily.com/releases/2026/02/260221000325.htm https://www.sciencedaily.com/releases/2026/02/260217005803.htm For years, satellite data suggested that autumn snow cover in the Northern Hemisphere was actually increasing — a surprising twist in a warming world. But a new analysis reveals that this apparent growth was an illusion caused by improving satellite technology that became better at detecting thin snow over time. In reality, snow cover has been shrinking by about half a million square kilometers per decade. Tue, 17 Feb 2026 22:58:00 EST https://www.sciencedaily.com/releases/2026/02/260217005803.htm https://www.sciencedaily.com/releases/2026/02/260212025613.htm Long before agriculture, humans were transforming Europe’s wild landscapes. Advanced simulations show that hunting and fire use by Neanderthals and Mesolithic hunter-gatherers reshaped forests and grasslands in measurable ways. By reducing populations of giant herbivores, people indirectly altered how dense vegetation became. The findings challenge the idea that prehistoric Europe was an untouched natural world. Thu, 12 Feb 2026 09:14:45 EST https://www.sciencedaily.com/releases/2026/02/260212025613.htm https://www.sciencedaily.com/releases/2026/02/260212025545.htm Even when Earth was locked in its most extreme deep freeze, the planet’s climate may not have been as silent and still as once believed. New research from ancient Scottish rocks reveals that during Snowball Earth — when ice sheets reached the tropics and the planet resembled a giant snowball from space — climate rhythms similar to today’s seasons, solar cycles, and even El Niño–like patterns were still pulsing beneath the ice. Thu, 12 Feb 2026 03:48:58 EST https://www.sciencedaily.com/releases/2026/02/260212025545.htm https://www.sciencedaily.com/releases/2026/02/260210231553.htm Scientists have developed a powerful new way to trace the journey of water across the planet by reading tiny atomic clues hidden inside it. Slightly heavier versions of hydrogen and oxygen, called isotopes, shift in predictable ways as water evaporates and moves through the atmosphere. By combining eight advanced climate models into a single ensemble, researchers created the most accurate large-scale simulation yet of how water circulates worldwide. Sun, 15 Feb 2026 08:12:50 EST https://www.sciencedaily.com/releases/2026/02/260210231553.htm https://www.sciencedaily.com/releases/2026/02/260210040611.htm Around 1550, life on Rapa Nui began changing in ways long misunderstood. New research reveals that a severe drought, lasting more than a century, dramatically reduced rainfall on the already water-scarce island, reshaping how people lived, worshiped, and organized society. Instead of collapsing, Rapanui communities adapted—shifting rituals, power structures, and sacred spaces in response to climate stress. Tue, 10 Feb 2026 10:01:48 EST https://www.sciencedaily.com/releases/2026/02/260210040611.htm https://www.sciencedaily.com/releases/2026/02/260208011024.htm Tiny marine plankton that build calcium carbonate shells play an outsized role in regulating Earth’s climate, quietly pulling carbon from the atmosphere and helping lock it away in the deep ocean. New research shows these microscopic engineers are largely missing from the climate models used to forecast our planet’s future, meaning scientists may be underestimating how the ocean responds to climate change. Sun, 08 Feb 2026 01:36:40 EST https://www.sciencedaily.com/releases/2026/02/260208011024.htm https://www.sciencedaily.com/releases/2026/02/260206232249.htm Arctic sea ice helps cool the planet and influences weather patterns around the world, but it is disappearing faster than ever as the climate warms. Scientists have now developed a new forecasting method that can predict how much Arctic sea ice will remain months in advance, focusing on September when ice levels are at their lowest. By combining long-term climate patterns, seasonal cycles, and short-term weather shifts, the model delivers real-time predictions that outperform existing approaches. Fri, 06 Feb 2026 23:56:20 EST https://www.sciencedaily.com/releases/2026/02/260206232249.htm https://www.sciencedaily.com/releases/2026/02/260206020847.htm A new study reveals that chemicals used to replace ozone-damaging CFCs are now driving a surge in a persistent “forever chemical” worldwide. The pollutant, called trifluoroacetic acid, is falling out of the atmosphere into water, land, and ice, including in remote regions like the Arctic. Even as older chemicals are phased out, their long lifetimes mean pollution is still rising. Fri, 06 Feb 2026 03:17:32 EST https://www.sciencedaily.com/releases/2026/02/260206020847.htm https://www.sciencedaily.com/releases/2026/02/260205050039.htm Deep inside Earth, two massive hot rock structures have been quietly shaping the planet’s magnetic field for millions of years. Using ancient magnetic records and advanced simulations, scientists discovered that these formations influence the movement of liquid iron in Earth’s core. Some parts of the magnetic field remained stable over vast stretches of time, while others changed dramatically. Thu, 05 Feb 2026 05:53:59 EST https://www.sciencedaily.com/releases/2026/02/260205050039.htm https://www.sciencedaily.com/releases/2026/02/260204042457.htm Melting ice from West Antarctica once delivered huge amounts of iron to the Southern Ocean, but algae growth did not increase as expected. Researchers found the iron was in a form that marine life could not easily use. This means more melting ice does not automatically boost carbon absorption. In the future, Antarctic ice loss could actually reduce the ocean’s ability to slow climate change. Wed, 04 Feb 2026 04:32:51 EST https://www.sciencedaily.com/releases/2026/02/260204042457.htm https://www.sciencedaily.com/releases/2026/01/260129080422.htm Scientists studying ancient ocean fossils found that the Arabian Sea was better oxygenated 16 million years ago, even though the planet was warmer than today. Oxygen levels only plunged millions of years later, after the climate cooled, defying expectations. Powerful monsoons and ocean circulation appear to have delayed oxygen loss in this region compared to the Pacific. The discovery suggests future ocean oxygen levels may not follow a simple warming-equals-deoxygenation rule. Thu, 29 Jan 2026 09:12:18 EST https://www.sciencedaily.com/releases/2026/01/260129080422.htm https://www.sciencedaily.com/releases/2026/01/260125081133.htm After analyzing 40 years of tree records across the Andes and Amazon, researchers found that climate change is reshaping tropical forests in uneven ways. Some regions are steadily losing tree species, especially where conditions are hotter and drier, while others are seeing gains. Rainfall patterns turned out to be just as important as rising temperatures. Sun, 25 Jan 2026 08:27:34 EST https://www.sciencedaily.com/releases/2026/01/260125081133.htm https://www.sciencedaily.com/releases/2026/01/260120000259.htm Mountain regions around the world are heating up faster than the lands below them, triggering dramatic shifts in snow, rain, and water supply that could affect over a billion people. A major global review finds that rising temperatures are turning snowfall into rain, shrinking glaciers, and making mountain weather more extreme and unpredictable. These changes threaten water sources for huge populations, including those in China and India, while also increasing risks of floods, ecosystem collapse, and deadly weather events. Wed, 21 Jan 2026 00:37:23 EST https://www.sciencedaily.com/releases/2026/01/260120000259.htm https://www.sciencedaily.com/releases/2026/01/260116035322.htm Tiny plastic particles drifting through the oceans may be quietly weakening one of Earth’s most powerful climate defenses. New research suggests microplastics are disrupting marine life that helps oceans absorb carbon dioxide, while also releasing greenhouse gases as they break down. By interfering with plankton, microbes, and natural carbon cycles, these pollutants reduce the ocean’s ability to regulate global temperatures. Sat, 17 Jan 2026 21:58:02 EST https://www.sciencedaily.com/releases/2026/01/260116035322.htm https://www.sciencedaily.com/releases/2026/01/260114084119.htm For thousands of years, wildfires on Alaska’s North Slope were rare. That changed sharply in the 20th century, when warming temperatures dried soils and fueled the spread of shrubs, setting the stage for intense fires. Peat cores and satellite data reveal that fire activity since the 1950s has reached record levels. The findings suggest the Arctic is entering a new, more dangerous fire era. Wed, 14 Jan 2026 08:41:19 EST https://www.sciencedaily.com/releases/2026/01/260114084119.htm https://www.sciencedaily.com/releases/2026/01/260114080328.htm Earth’s oceans reached their highest heat levels on record in 2025, absorbing vast amounts of excess energy from the atmosphere. This steady buildup has accelerated since the 1990s and is now driving stronger storms, heavier rainfall, and rising sea levels. While surface temperatures fluctuate year to year, the ocean’s long-term warming trend shows no sign of slowing. Wed, 14 Jan 2026 08:36:08 EST https://www.sciencedaily.com/releases/2026/01/260114080328.htm https://www.sciencedaily.com/releases/2026/01/260112214304.htm Scientists tracking Earth’s water from space discovered that El Niño and La Niña are synchronizing floods and droughts across continents. When these climate cycles intensify, far-apart regions can become unusually wet or dangerously dry at the same time. The study also found a global shift about a decade ago, with dry extremes becoming more common than wet ones. Together, the results show that water crises are part of a global pattern, not isolated events. Tue, 13 Jan 2026 02:45:55 EST https://www.sciencedaily.com/releases/2026/01/260112214304.htm https://www.sciencedaily.com/releases/2026/01/260112001034.htm Microscopic ocean algae produce a huge share of Earth’s oxygen—but they need iron to do it. New field research shows that when iron is scarce, phytoplankton waste energy and photosynthesis falters. Climate-driven changes may reduce iron delivery to the oceans, weakening the base of marine food chains. Over time, this could mean fewer krill and fewer whales, seals, and penguins. Mon, 12 Jan 2026 09:01:37 EST https://www.sciencedaily.com/releases/2026/01/260112001034.htm https://www.sciencedaily.com/releases/2026/01/260104202818.htm A meltwater lake that formed in the mid-1990s on Greenland’s 79°N Glacier has been draining in sudden, dramatic bursts through cracks and vertical ice shafts. These events have accelerated in recent years, creating strange triangular fracture patterns and flooding the glacier’s base with water in just hours. Some drainages even pushed the ice upward from below, like a blister forming under the glacier. Scientists now wonder whether the glacier can ever return to its previous seasonal rhythm. Mon, 05 Jan 2026 16:49:31 EST https://www.sciencedaily.com/releases/2026/01/260104202818.htm https://www.sciencedaily.com/releases/2025/12/251228020008.htm The Arctic is changing rapidly, and scientists have uncovered a powerful mix of natural and human-driven processes fueling that change. Cracks in sea ice release heat and pollutants that form clouds and speed up melting, while emissions from nearby oil fields alter the chemistry of the air. These interactions trigger feedback loops that let in more sunlight, generate smog, and push warming even further. Together, they paint a troubling picture of how fragile the Arctic system has become. Mon, 29 Dec 2025 17:21:39 EST https://www.sciencedaily.com/releases/2025/12/251228020008.htm https://www.sciencedaily.com/releases/2025/12/251227082724.htm Scientists have built the most detailed 3D models yet of temperatures deep beneath Greenland. The results reveal uneven heat hidden below the ice, shaped by Greenland’s ancient path over a volcanic hotspot. This underground warmth affects how the ice sheet moves and melts today. Understanding it could sharpen predictions of future sea level rise. Sat, 27 Dec 2025 12:33:56 EST https://www.sciencedaily.com/releases/2025/12/251227082724.htm https://www.sciencedaily.com/releases/2025/12/251225080736.htm Scientists are uncovering new clues that a cosmic explosion may have rocked Earth at the end of the last ice age. At major Clovis-era sites, researchers found shocked quartz—evidence of intense heat and pressure consistent with a comet airburst rather than volcanism or human activity. The event could have sparked massive fires, blocked sunlight, and triggered a rapid return to ice-age conditions. These harsh changes may explain the sudden loss of megafauna and the disappearance of the Clovis culture. Thu, 01 Jan 2026 23:12:42 EST https://www.sciencedaily.com/releases/2025/12/251225080736.htm https://www.sciencedaily.com/releases/2025/12/251221043231.htm Scientists have uncovered a missing feedback in Earth’s carbon cycle that could cause global warming to overshoot into an ice age. As the planet warms, nutrient-rich runoff fuels plankton blooms that bury huge amounts of carbon in the ocean. In low-oxygen conditions, this process can spiral out of control, cooling Earth far beyond its original state. While this won’t save us from modern climate change, it may explain Earth’s most extreme ancient ice ages. Sun, 21 Dec 2025 11:02:49 EST https://www.sciencedaily.com/releases/2025/12/251221043231.htm https://www.sciencedaily.com/releases/2025/12/251219093325.htm Old military air samples turned out to be a treasure trove of biological DNA, allowing scientists to track moss spores over 35 years. The results show mosses now release spores up to a month earlier than in the 1990s. Even more surprising, the timing depends more on last year’s climate than current spring conditions. It’s a striking example of how fast ecosystems are adjusting to a warming world. Sun, 21 Dec 2025 01:10:14 EST https://www.sciencedaily.com/releases/2025/12/251219093325.htm https://www.sciencedaily.com/releases/2025/12/251219030455.htm New research reveals when glaciers around the world will vanish and why every fraction of a degree of warming could decide their fate. Fri, 19 Dec 2025 03:19:31 EST https://www.sciencedaily.com/releases/2025/12/251219030455.htm https://www.sciencedaily.com/releases/2025/12/251218060602.htm Cosmic “touchdown airbursts” — explosions of comets or asteroids above Earth’s surface — may be far more common and destructive than previously thought, according to new research. Unlike crater-forming impacts, these events unleash extreme heat and pressure without leaving obvious scars, making them harder to detect. Fri, 19 Dec 2025 01:30:09 EST https://www.sciencedaily.com/releases/2025/12/251218060602.htm https://www.sciencedaily.com/releases/2025/12/251215084206.htm Around 1,000 years ago, a major climate shift reshaped rainfall across the South Pacific, making western islands like Samoa and Tonga drier while eastern islands such as Tahiti became increasingly wet. New evidence from plant waxes preserved in island sediments shows this change coincided with the final major wave of Polynesian expansion eastward. As freshwater became scarcer in the west and more abundant in the east, people may have been pushed to migrate, effectively “chasing the rain” across vast stretches of ocean. Mon, 15 Dec 2025 23:53:04 EST https://www.sciencedaily.com/releases/2025/12/251215084206.htm https://www.sciencedaily.com/releases/2025/12/251212022244.htm Fossils from Qatar have revealed a small, newly identified sea cow species that lived in the Arabian Gulf more than 20 million years ago. The site contains the densest known collection of fossil sea cow bones, showing that these animals once thrived in rich seagrass meadows. Their ecological role mirrors that of modern dugongs, which still reshape the Gulf’s seafloor as they graze. The findings may help researchers understand how seagrass ecosystems respond to long-term environmental change. Fri, 12 Dec 2025 02:58:26 EST https://www.sciencedaily.com/releases/2025/12/251212022244.htm https://www.sciencedaily.com/releases/2025/12/251211100631.htm Researchers found that eroded lava rubble beneath the South Atlantic can trap enormous amounts of CO2 for tens of millions of years. These porous breccia deposits store far more carbon than previously sampled ocean crust. The discovery reshapes how scientists view the long-term balance of carbon between the ocean, rocks, and atmosphere. It also reveals a hidden mechanism that helps stabilize Earth’s climate over geological timescales. Thu, 11 Dec 2025 12:42:22 EST https://www.sciencedaily.com/releases/2025/12/251211100631.htm https://www.sciencedaily.com/releases/2025/12/251209043053.htm New research reveals that Earth’s solid inner core is actually in a superionic state, where carbon atoms flow freely through a solid iron lattice. This unusual behavior makes the core soft, matching seismic observations that have puzzled scientists for decades. The mobility of these light elements may also contribute energy to Earth’s magnetic field. The findings reshape models of Earth’s interior and could apply to other rocky planets. Wed, 10 Dec 2025 08:32:41 EST https://www.sciencedaily.com/releases/2025/12/251209043053.htm https://www.sciencedaily.com/releases/2025/12/251208014623.htm A newly analyzed set of climate data points to a major volcanic eruption that may have played a key role in the Black Death’s arrival. Cooling and crop failures across Europe pushed Italian states to bring in grain from the Black Sea. Those shipments may have carried plague-infected fleas. The study ties together tree rings, ice cores, and historical writings to reframe how the pandemic began. Mon, 08 Dec 2025 03:29:31 EST https://www.sciencedaily.com/releases/2025/12/251208014623.htm https://www.sciencedaily.com/releases/2025/12/251207031333.htm A century-old North Atlantic cold patch is now linked to a long-term slowdown in the AMOC, the climate-regulating conveyor belt of ocean water. Only weakened-AMOC models match observed temperature and salinity patterns, overturning recent model trends. This slowdown affects weather systems, jet streams, and marine life throughout the Northern Hemisphere. The discovery sharpens climate forecasts and highlights a major shift already underway. Sun, 07 Dec 2025 12:04:42 EST https://www.sciencedaily.com/releases/2025/12/251207031333.htm https://www.sciencedaily.com/releases/2025/12/251202052209.htm As the last Ice Age waned and the Holocene dawned, deep-ocean circulation around Antarctica underwent dramatic shifts that helped release long-stored carbon back into the atmosphere. Deep-sea sediments show that ancient Antarctic waters once trapped vast amounts of carbon, only to release it during two major warming pulses at the end of the Ice Age. Understanding these shifts helps scientists predict how modern Antarctic melt may accelerate future climate change. Tue, 02 Dec 2025 05:22:09 EST https://www.sciencedaily.com/releases/2025/12/251202052209.htm https://www.sciencedaily.com/releases/2025/11/251130205511.htm Two decades of satellite and GPS data show the Thwaites Eastern Ice Shelf slowly losing its grip on a crucial stabilizing point as fractures multiply and ice speeds up. Scientists warn this pattern could spread to other vulnerable Antarctic shelves. Mon, 01 Dec 2025 01:44:02 EST https://www.sciencedaily.com/releases/2025/11/251130205511.htm https://www.sciencedaily.com/releases/2025/11/251125081914.htm Rerouted shipping during Red Sea conflicts accidentally created a massive real-world experiment, letting scientists study how new low-sulfur marine fuels affect cloud formation. The sudden surge of ships around the Cape of Good Hope revealed that cleaner fuels dramatically weaken the ability of ship emissions to seed bright, reflective clouds—cutting this cloud-boosting effect by about two-thirds. Wed, 26 Nov 2025 03:55:02 EST https://www.sciencedaily.com/releases/2025/11/251125081914.htm https://www.sciencedaily.com/releases/2025/11/251123115431.htm About 4.5 billion years ago, a colossal impact between the young Earth and a mysterious planetary body called Theia changed everything—reshaping Earth, forming the Moon, and scattering clues across space rocks. By examining subtle isotopic fingerprints in Earth and Moon samples, scientists have reconstructed Theia’s possible composition and birthplace. Sun, 23 Nov 2025 13:03:07 EST https://www.sciencedaily.com/releases/2025/11/251123115431.htm https://www.sciencedaily.com/releases/2025/11/251120002832.htm Experts say the ocean could help absorb carbon dioxide, but today’s technologies are too uncertain to be scaled up safely. New findings released during COP30 highlight the risks of rushing into marine carbon removal without proper monitoring and verification. With the 1.5°C threshold approaching, researchers stress that emissions cuts must remain the top priority. Ocean-based methods may play a role later, but they need careful oversight first. Thu, 20 Nov 2025 01:52:08 EST https://www.sciencedaily.com/releases/2025/11/251120002832.htm https://www.sciencedaily.com/releases/2025/11/251120002558.htm Scientists may finally be closing in on the origins of two colossal, mysterious structures buried nearly 1,800 miles inside Earth—hidden formations that have puzzled researchers for decades. New modeling suggests that slow leakage of elements from Earth’s core into the mantle prevented the planet from developing strong chemical layers after its primordial magma-ocean era. Thu, 20 Nov 2025 11:32:45 EST https://www.sciencedaily.com/releases/2025/11/251120002558.htm https://www.sciencedaily.com/releases/2025/11/251118220054.htm Massive Sargassum blooms sweeping across the Caribbean and Atlantic are fueled by a powerful nutrient partnership: phosphorus pulled to the surface by equatorial upwelling and nitrogen supplied by cyanobacteria living directly on the drifting algae. Coral cores reveal that this nutrient engine has intensified over the past decade, perfectly matching surges in Sargassum growth since 2011. By ruling out older theories involving Saharan dust and river runoff, researchers uncovered a climate-driven process that shapes when and where these colossal seaweed mats form. Wed, 19 Nov 2025 03:56:56 EST https://www.sciencedaily.com/releases/2025/11/251118220054.htm https://www.sciencedaily.com/releases/2025/11/251118212035.htm Researchers have discovered chemical traces of life in rocks older than 3.3 billion years, offering a rare look at Earth’s earliest biology. By combining advanced chemical methods with artificial intelligence, scientists were able to detect faint molecular patterns left behind long after the original biomolecules disappeared. Newly analyzed fossils, including ancient seaweed from Canada’s Yukon Territory, helped validate the method and deepen understanding of early ecosystems. Tue, 18 Nov 2025 21:37:29 EST https://www.sciencedaily.com/releases/2025/11/251118212035.htm https://www.sciencedaily.com/releases/2025/11/251113071623.htm Researchers in Greenland used a 10-kilometer fiber-optic cable to track how iceberg calving stirs up warm seawater. The resulting surface tsunamis and massive hidden underwater waves intensify melting at the glacier face. This powerful mixing effect accelerates ice loss far more than previously understood. The work highlights how fragile the Greenland ice system has become as temperatures rise. Fri, 14 Nov 2025 03:35:45 EST https://www.sciencedaily.com/releases/2025/11/251113071623.htm https://www.sciencedaily.com/releases/2025/11/251113071611.htm Hektoria Glacier’s sudden eight-kilometer collapse stunned scientists, marking the fastest modern ice retreat ever recorded in Antarctica. Its flat, below-sea-level ice plain allowed huge slabs of ice to detach rapidly once retreat began. Seismic activity confirmed this wasn’t just floating ice but grounded mass contributing to sea level rise. The event raises alarms that other fragile glaciers may be poised for similar, faster-than-expected collapses. Fri, 14 Nov 2025 03:09:57 EST https://www.sciencedaily.com/releases/2025/11/251113071611.htm https://www.sciencedaily.com/releases/2025/11/251112111032.htm Researchers discovered that living horsetails act like natural distillation towers, producing bizarre oxygen isotope signatures more extreme than anything previously recorded on Earth—sometimes resembling meteorite water. By tracing these isotopic shifts from the plant base to its tip, scientists unlocked a new way to decode ancient humidity and climate, using both modern plants and fossilized phytoliths that preserve isotopic clues for millions of years. Thu, 13 Nov 2025 03:31:03 EST https://www.sciencedaily.com/releases/2025/11/251112111032.htm https://www.sciencedaily.com/releases/2025/11/251112111015.htm Arctic sea ice is disappearing fast, and scientists have turned to an unexpected cosmic clue—space dust—to uncover how ice has changed over tens of thousands of years. By tracking helium-3–bearing dust trapped (or blocked) by ancient ice, researchers built a remarkably detailed history of Arctic coverage stretching back 30,000 years. Their findings reveal powerful links between sea ice, nutrient availability, and the Arctic food web, offering hints about how future warming may reshape everything from plankton blooms to geopolitics. Thu, 13 Nov 2025 03:44:11 EST https://www.sciencedaily.com/releases/2025/11/251112111015.htm https://www.sciencedaily.com/releases/2025/11/251109032406.htm Around 9,000 years ago, East Antarctica went through a dramatic meltdown that was anything but isolated. Scientists have discovered that warm deep ocean water surged beneath the region’s floating ice shelves, causing them to collapse and unleashing a domino effect of ice loss across the continent. This process created a “cascading positive feedback,” where melting in one area sped up melting elsewhere through interconnected ocean currents. Sun, 09 Nov 2025 03:56:56 EST https://www.sciencedaily.com/releases/2025/11/251109032406.htm https://www.sciencedaily.com/releases/2025/11/251106003941.htm Researchers warn Antarctica is undergoing abrupt changes that could trigger global consequences. Melting ice, collapsing ice shelves, and disrupted ocean circulation threaten sea levels, ecosystems, and climate stability. Wildlife such as penguins and krill face growing extinction risks. Scientists stress that only rapid emission reductions can avert irreversible damage. Thu, 06 Nov 2025 11:23:51 EST https://www.sciencedaily.com/releases/2025/11/251106003941.htm https://www.sciencedaily.com/releases/2025/11/251105050716.htm Scientists discovered 6-million-year-old ice in Antarctica, offering the oldest direct record of Earth’s ancient atmosphere and climate. The finding reveals a dramatic cooling trend and promises insights into greenhouse gas changes over millions of years. Wed, 05 Nov 2025 05:07:16 EST https://www.sciencedaily.com/releases/2025/11/251105050716.htm https://www.sciencedaily.com/releases/2025/10/251029002920.htm Global scientists warn that humanity is on the verge of crossing irreversible climate thresholds, with coral reefs already at their tipping point and polar ice sheets possibly beyond recovery. The Global Tipping Points Report 2025 reveals how rising temperatures could trigger a cascade of system collapses, from the Amazon rainforest turning to savanna to the potential shutdown of the Atlantic Ocean circulation. Wed, 29 Oct 2025 04:26:38 EDT https://www.sciencedaily.com/releases/2025/10/251029002920.htm