https://www.sciencedaily.com/news/earth_climate/drought/ Drought Research. Read where droughts are predicted, and what can be done about them. en-us Fri, 17 Apr 2026 09:11:30 EDT Fri, 17 Apr 2026 09:11:30 EDT 60 https://www.sciencedaily.com/images/scidaily-logo-rss.png https://www.sciencedaily.com/news/earth_climate/drought/ For more science news, visit ScienceDaily. https://www.sciencedaily.com/releases/2026/04/260413232421.htm For years, water managers have been puzzled as the Colorado River kept delivering less water than expected—even when snowpack levels looked promising. New research reveals the missing piece: spring rain, or rather, the lack of it. Warmer, drier springs mean plants are soaking up more snowmelt before it can reach rivers, fueled by sunny skies that boost growth and evaporation. In fact, this shift explains nearly 70% of the shortfall, tying the mystery directly to the long-running Millennium drought. Tue, 14 Apr 2026 01:30:13 EDT https://www.sciencedaily.com/releases/2026/04/260413232421.htm https://www.sciencedaily.com/releases/2026/04/260413043135.htm Africa’s forests have undergone a shocking reversal, switching from carbon absorbers to carbon emitters after 2010. Researchers found that heavy deforestation in tropical regions has led to massive biomass losses, far outweighing any gains from regrowth elsewhere. This change could seriously undermine global efforts to slow climate change. Scientists warn that protecting forests is now more urgent than ever. Mon, 13 Apr 2026 10:40:04 EDT https://www.sciencedaily.com/releases/2026/04/260413043135.htm https://www.sciencedaily.com/releases/2026/03/260328043549.htm Scientists have created a new kind of carbon material that could make carbon capture much cheaper and more efficient. By carefully controlling how nitrogen atoms are arranged, they found certain structures capture CO2 better and release it using far less heat. One version works at temperatures below 60 °C, meaning it could run on waste heat instead of costly energy. The discovery offers a powerful new blueprint for next-generation climate technology. Sat, 28 Mar 2026 08:05:36 EDT https://www.sciencedaily.com/releases/2026/03/260328043549.htm 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/2026/03/260311213435.htm Decades of data from over 80,000 great tits reveal that extreme weather can shape the fate of baby birds. Cold snaps soon after hatching and heavy rain later in development shrink nestling body mass and reduce survival odds. But moderate warm spells can actually help chicks grow by boosting insect activity and feeding opportunities. Birds that breed earlier in the season seem better protected from these weather shocks. Thu, 12 Mar 2026 19:34:52 EDT https://www.sciencedaily.com/releases/2026/03/260311213435.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/2026/03/260302030650.htm Even in the ultra-dry Atacama Desert, tiny soil-dwelling nematodes are thriving in surprising diversity. Scientists found that biodiversity increases with moisture and altitude shapes which species survive. In the most extreme zones, many nematodes reproduce asexually — a possible survival advantage. The discovery suggests that life in arid regions may be far richer, and more fragile, than once believed. Mon, 02 Mar 2026 10:49:03 EST https://www.sciencedaily.com/releases/2026/03/260302030650.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/2026/02/260210040611.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/2026/01/260115220612.htm New research shows tropical forests can recover twice as fast after deforestation when their soils contain enough nitrogen. Scientists followed forest regrowth across Central America for decades and found that nitrogen plays a decisive role in how quickly trees return. Faster regrowth also means more carbon captured from the atmosphere. The study points to smarter reforestation strategies that work with nature rather than relying on fertilizers. Thu, 15 Jan 2026 22:31:47 EST https://www.sciencedaily.com/releases/2026/01/260115220612.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/2026/01/260104202809.htm CO2 can stimulate plant growth, but only when enough nitrogen is available—and that key ingredient has been seriously miscalculated. A new study finds that natural nitrogen fixation has been overestimated by about 50 percent in major climate models. This means the climate-cooling benefits of plant growth under high CO2 are smaller than expected. The result: a reduced buffer against climate change and more uncertainty in future projections. Mon, 05 Jan 2026 04:46:45 EST https://www.sciencedaily.com/releases/2026/01/260104202809.htm https://www.sciencedaily.com/releases/2025/12/251218060550.htm Much of the western U.S. is overdue for wildfire, with decades of suppression allowing fuel to build up across millions of hectares. Researchers estimate that 74% of the region is in a fire deficit, meaning far more land needs to burn to restore healthy forest conditions. Catching up would require an unprecedented amount of controlled and managed fire. Thu, 18 Dec 2025 10:17:44 EST https://www.sciencedaily.com/releases/2025/12/251218060550.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/2025/12/251215084159.htm A rare, ultra-long earthquake in Myanmar revealed that mature faults can deliver their full force directly to the surface. The discovery could mean stronger shaking near faults like California’s San Andreas than current models predict. Tue, 16 Dec 2025 07:11:05 EST https://www.sciencedaily.com/releases/2025/12/251215084159.htm https://www.sciencedaily.com/releases/2025/12/251211100633.htm New research shows that crops are far more vulnerable when too much rainfall originates from land rather than the ocean. Land-sourced moisture leads to weaker, less reliable rainfall, heightening drought risk. The U.S. Midwest and East Africa are particularly exposed due to soil drying and deforestation. Protecting forests and improving land management could help stabilize rainfall and crop yields. Fri, 12 Dec 2025 10:20:47 EST https://www.sciencedaily.com/releases/2025/12/251211100633.htm https://www.sciencedaily.com/releases/2025/12/251210092024.htm Researchers have uncovered surprising evidence that the deep ocean’s carbon-fixing engine works very differently than long assumed. While ammonia-oxidizing archaea were thought to dominate carbon fixation in the sunless depths, experiments show that other microbes—especially heterotrophs—are doing far more of the work than expected. This discovery reshapes our understanding of how carbon moves through the deep ocean and stabilizes Earth’s climate. Wed, 10 Dec 2025 11:23:29 EST https://www.sciencedaily.com/releases/2025/12/251210092024.htm https://www.sciencedaily.com/releases/2025/12/251209043038.htm Scientists discovered a small protein region that determines whether plants reject or welcome nitrogen-fixing bacteria. By tweaking only two amino acids, they converted a defensive receptor into one that supports symbiosis. Early success in barley hints that cereals may eventually be engineered to fix nitrogen on their own. Such crops could dramatically reduce fertilizer use and emissions. Tue, 09 Dec 2025 10:39:24 EST https://www.sciencedaily.com/releases/2025/12/251209043038.htm https://www.sciencedaily.com/releases/2025/11/251123115435.htm UC Davis researchers engineered wheat that encourages soil bacteria to convert atmospheric nitrogen into plant-usable fertilizer. By boosting a natural compound in the plant, the wheat triggers bacteria to form biofilms that enable nitrogen fixation. This breakthrough could cut fertilizer use, reduce pollution, and increase yields. It also offers huge potential savings for farmers worldwide. Mon, 24 Nov 2025 05:00:24 EST https://www.sciencedaily.com/releases/2025/11/251123115435.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/2025/11/251115095918.htm Scientists discovered that a week of full submergence is enough to kill most rice plants, making flooding a far greater threat than previously understood. Intensifying extreme rainfall events may amplify these losses unless vulnerable regions adopt more resilient rice varieties. Sat, 15 Nov 2025 09:59:18 EST https://www.sciencedaily.com/releases/2025/11/251115095918.htm https://www.sciencedaily.com/releases/2025/11/251109032410.htm In Death Valley’s relentless heat, Tidestromia oblongifolia doesn’t just survive—it thrives. Michigan State University scientists discovered that the plant can quickly adjust its photosynthetic machinery to endure extreme temperatures that would halt most species. Its cells reorganize, its genes switch on protective functions, and it even reshapes its chloroplasts to keep producing energy. The findings could guide the creation of crops capable of withstanding future heat waves. Sun, 09 Nov 2025 04:01:43 EST https://www.sciencedaily.com/releases/2025/11/251109032410.htm https://www.sciencedaily.com/releases/2025/11/251104094139.htm Even with futuristic geoengineering methods like Stratospheric Aerosol Injection, the fate of wine, coffee, and cacao crops remains uncertain. Scientists found that while this intervention could slightly cool the planet, it cannot stabilize the erratic rainfall and humidity that devastate yields. The findings reveal that only a fraction of major growing regions might benefit, leaving most producers exposed to volatile harvests and economic instability. Tue, 04 Nov 2025 21:23:44 EST https://www.sciencedaily.com/releases/2025/11/251104094139.htm https://www.sciencedaily.com/releases/2025/11/251102205025.htm UIC researchers predict that the Sahara Desert could see up to 75% more rain by the end of this century due to rising global temperatures. Using 40 climate models, the team found widespread precipitation increases across Africa, though some regions may dry out. The results suggest a major rebalancing of the continent’s climate. Scientists stress that adaptation planning is essential to prepare for both wetter and drier futures. Mon, 03 Nov 2025 04:22:31 EST https://www.sciencedaily.com/releases/2025/11/251102205025.htm https://www.sciencedaily.com/releases/2025/10/251020092826.htm Melting Arctic ice is revealing a hidden world of nitrogen-fixing bacteria beneath the surface. These microbes, not the usual cyanobacteria, enrich the ocean with nitrogen, fueling algae growth that supports the entire marine food chain. As ice cover declines, both algae production and CO2 absorption may increase, altering the region’s ecological balance. The discovery could force scientists to revise predictions about Arctic climate feedbacks. Tue, 21 Oct 2025 02:36:47 EDT https://www.sciencedaily.com/releases/2025/10/251020092826.htm https://www.sciencedaily.com/releases/2025/10/251016223056.htm Researchers have discovered chemical fingerprints of Earth's earliest incarnation, preserved in ancient mantle rocks. A unique imbalance in potassium isotopes points to remnants of “proto Earth” material that survived the planet’s violent formation. The study suggests the original building blocks of Earth remain hidden beneath its surface, offering a direct glimpse into our planet’s ancient origins. Fri, 17 Oct 2025 05:31:35 EDT https://www.sciencedaily.com/releases/2025/10/251016223056.htm https://www.sciencedaily.com/releases/2025/09/250924012230.htm Rice, a staple for billions, is one of the most resource-hungry crops on the planet—but scientists may have found a way to change that. By applying nanoscale selenium directly to rice plants, researchers dramatically improved nitrogen efficiency, boosted yields, and made grains more nutritious while reducing fertilizer use and cutting greenhouse gas emissions. Wed, 24 Sep 2025 01:22:30 EDT https://www.sciencedaily.com/releases/2025/09/250924012230.htm https://www.sciencedaily.com/releases/2025/09/250905112306.htm Seagrass, a vital coastal ecosystem, may be one of the planet’s best natural carbon sponges—but its fate depends on how we manage nutrients like nitrogen and phosphorus. While moderate nutrient input can supercharge seagrass growth and boost carbon storage, too much—especially nitrogen—fuels phytoplankton that block sunlight and devastate seagrass beds. Fri, 05 Sep 2025 12:44:53 EDT https://www.sciencedaily.com/releases/2025/09/250905112306.htm https://www.sciencedaily.com/releases/2025/08/250814094654.htm Chemical evidence from a stalagmite in Mexico has revealed that the Classic Maya civilization’s decline coincided with repeated severe wet-season droughts, including one that lasted 13 years. These prolonged droughts corresponded with halted monument construction and political disruption at key Maya sites, suggesting that climate stress played a major role in the collapse. The findings demonstrate how stalagmites offer unmatched precision for linking environmental change to historical events. Sat, 16 Aug 2025 00:44:53 EDT https://www.sciencedaily.com/releases/2025/08/250814094654.htm https://www.sciencedaily.com/releases/2025/08/250813083614.htm Over 15 years of fossil excavations in Tanzania and Zambia have revealed a vivid portrait of life before Earth s most devastating mass extinction 252 million years ago. Led by the University of Washington and the Field Museum, scientists uncovered saber-toothed predators, burrowing herbivores, and giant amphibians, offering rare insight into southern Pangea s ecosystems just before the Great Dying. Wed, 13 Aug 2025 08:36:14 EDT https://www.sciencedaily.com/releases/2025/08/250813083614.htm https://www.sciencedaily.com/releases/2025/07/250709091658.htm Climate change is silently sapping the nutrients from our food. A pioneering study finds that rising CO2 and higher temperatures are not only reshaping how crops grow but are also degrading their nutritional value especially in vital leafy greens like kale and spinach. This shift could spell trouble for global health, particularly in communities already facing nutritional stress. Researchers warn that while crops may grow faster, they may also become less nourishing, with fewer minerals, proteins, and antioxidants raising concerns about obesity, weakened immunity, and chronic diseases. Wed, 09 Jul 2025 09:16:58 EDT https://www.sciencedaily.com/releases/2025/07/250709091658.htm https://www.sciencedaily.com/releases/2025/07/250706225819.htm Kenyan fig trees can literally turn parts of themselves to stone, using microbes to convert internal crystals into limestone-like deposits that lock away carbon, sweeten surrounding soils, and still yield fruit—hinting at a delicious new weapon in the climate-change arsenal. Sun, 06 Jul 2025 23:54:49 EDT https://www.sciencedaily.com/releases/2025/07/250706225819.htm https://www.sciencedaily.com/releases/2025/06/250606231257.htm Frogs, salamanders, and other amphibians are not just battling habitat loss and pollution they're now also contending with increasingly brutal heat waves and droughts. A sweeping 40-year study shows a direct link between the rise in extreme weather events and the growing number of species landing on the endangered list. Europe, the Amazon, and Madagascar have become danger zones, with amphibians unable to adapt quickly enough. But there s hope scientists are calling for focused conservation efforts like habitat restoration and micro-refuges to help these vulnerable creatures survive. Fri, 06 Jun 2025 23:12:57 EDT https://www.sciencedaily.com/releases/2025/06/250606231257.htm https://www.sciencedaily.com/releases/2025/06/250602155328.htm Some microbes living on sand grains use up all the oxygen around them. Their neighbors, left without oxygen, make the best of it: They use nitrate in the surrounding water for denitrification -- a process hardly possible when oxygen is present. This denitrification in sandy sediments in well-oxygenated waters can substantially contribute to nitrogen loss in the oceans. Mon, 02 Jun 2025 15:53:28 EDT https://www.sciencedaily.com/releases/2025/06/250602155328.htm https://www.sciencedaily.com/releases/2025/06/250602154719.htm New research shows that the presence of solar panels in Colorado's grasslands may reduce water stress, improve soil moisture levels and -- particularly during dry years -- increase plant growth by about 20% or more compared to open fields. Mon, 02 Jun 2025 15:47:19 EDT https://www.sciencedaily.com/releases/2025/06/250602154719.htm https://www.sciencedaily.com/releases/2025/05/250529155413.htm Hurricane Ida wreaked an estimated $75 billion in total damages and was responsible for 112 fatalities -- including 32 in New Jersey and 16 in New York state. Yet the hurricane could have been even worse in the Big Apple, find scientists. Thu, 29 May 2025 15:54:13 EDT https://www.sciencedaily.com/releases/2025/05/250529155413.htm https://www.sciencedaily.com/releases/2025/05/250529140125.htm A new study reveals that the aerobic nitrogen cycle in the ocean may have occurred about 100 million years before oxygen began to significantly accumulate in the atmosphere, based on nitrogen isotope analysis from ancient South African rock cores. These findings not only refine the timeline of Earth's oxygenation but also highlight a critical evolutionary shift, where life began adapting to oxygen-rich conditions -- paving the way for the emergence of complex, multicellular organisms like humans. Thu, 29 May 2025 14:01:25 EDT https://www.sciencedaily.com/releases/2025/05/250529140125.htm https://www.sciencedaily.com/releases/2025/05/250529124740.htm A professor of crop sciences and of plant biology describes research efforts to 'future-proof' the crops that are essential to feeding a hungry world in a changing climate. Long, who has spent decades studying the process of photosynthesis and finding ways to improve it, provides an overview of key scientific findings that offer a ray of hope. Thu, 29 May 2025 12:47:40 EDT https://www.sciencedaily.com/releases/2025/05/250529124740.htm https://www.sciencedaily.com/releases/2025/05/250522124838.htm A modeling study shows that global warming will make it harder to reduce ground-level ozone, a respiratory irritant that is a key component of smog, by cutting greenhouse gas emissions. Thu, 22 May 2025 12:48:38 EDT https://www.sciencedaily.com/releases/2025/05/250522124838.htm https://www.sciencedaily.com/releases/2025/05/250521124607.htm Hurricane winds are a major contributor to storm-related losses for people living in the southeastern coastal states. As the global temperature continues to rise, scientists predict that hurricanes will get more destructive -- packing higher winds and torrential rainfall. A new study projects that wind losses for homeowners in the Southeastern coastal states could be 76 percent higher by the year 2060 and 102 percent higher by 2100. Wed, 21 May 2025 12:46:07 EDT https://www.sciencedaily.com/releases/2025/05/250521124607.htm https://www.sciencedaily.com/releases/2025/05/250519131556.htm People have assumed climate change solutions that sequester carbon from the air into soils will also benefit crop yields. But a new study finds that most regenerative farming practices to build soil organic carbon -- such as planting cover crops, leaving stems and leaves on the ground and not tilling -- actually reduce yields in many situations. Mon, 19 May 2025 13:15:56 EDT https://www.sciencedaily.com/releases/2025/05/250519131556.htm https://www.sciencedaily.com/releases/2025/05/250519131545.htm Fertilizer might be stronger than we thought. A new international study found that fertilizer can help plants survive short-term periods of extreme drought, findings which could have implications for agriculture and food systems in a world facing climate stressors. Mon, 19 May 2025 13:15:45 EDT https://www.sciencedaily.com/releases/2025/05/250519131545.htm https://www.sciencedaily.com/releases/2025/05/250514164325.htm Scientists are using artificial intelligence to determine which genes collectively govern nitrogen use efficiency in plants such as corn, with the goal of helping farmers improve their crop yields and minimize the cost of nitrogen fertilizers. Wed, 14 May 2025 16:43:25 EDT https://www.sciencedaily.com/releases/2025/05/250514164325.htm https://www.sciencedaily.com/releases/2025/05/250514141905.htm The impacts of human activity and climate change are coalescing to make coastal lagoons saltier, changing the microbial life they support and the function they play in their ecosystems, according to new research. Wed, 14 May 2025 14:19:05 EDT https://www.sciencedaily.com/releases/2025/05/250514141905.htm https://www.sciencedaily.com/releases/2025/05/250514141640.htm A multidisciplinary team of researchers has developed an artificial intelligence (AI) model that can predict acute child malnutrition in Kenya up to six months in advance. The tool offers governments and humanitarian organizations critical lead time to deliver life-saving food, health care, and supplies to at-risk areas. The machine learning model outperforms traditional approaches by integrating clinical data from more than 17,000 Kenyan health facilities with satellite data on crop health and productivity. It achieves 89% accuracy when forecasting one month out and maintains 86% accuracy over six months -- a significant improvement over simpler baseline models that rely only on recent historical child malnutrition prevalence trends. Wed, 14 May 2025 14:16:40 EDT https://www.sciencedaily.com/releases/2025/05/250514141640.htm https://www.sciencedaily.com/releases/2025/05/250512202042.htm Stifling heat and sticky air often make summertime in the city uncomfortable. Due to the heat island effect, urban areas are significantly warmer than nearby rural areas, even at night. This, combined with more frequent extreme weather events caused by climate change, often render the city an unpleasant environment in the summer. Urbanization and climate change modify the thermal environment of urban areas, with an expectation that urban disasters from extremely hot weather and heavy rainfall will only become more severe. Mitigating potential damage involves reducing the intensity of the heat island effect and adapting to climate change. Motivated by this problem, a team of researchers set out to investigate how the reduction in urban heat release could help mitigate and control the rapid development of thunderstorms and local rainfall. Mon, 12 May 2025 20:20:42 EDT https://www.sciencedaily.com/releases/2025/05/250512202042.htm https://www.sciencedaily.com/releases/2025/05/250512105541.htm El Nino-Southern Oscillation (ENSO) is known to have a significant impact on climate across the Pacific, including Hawai'i, and adjacent continents. However, atmospheric scientists have now revealed that the Pacific Meridional Mode (PMM), another climate pattern that operates in the eastern Pacific Ocean, plays a major role in the variability of rainfall in Hawai'i. Mon, 12 May 2025 10:55:41 EDT https://www.sciencedaily.com/releases/2025/05/250512105541.htm https://www.sciencedaily.com/releases/2025/05/250508113112.htm A long period of drought in North America has been recognized by scientists for decades. A new study links the severe climate to a change in Earth's orbit. Thu, 08 May 2025 11:31:12 EDT https://www.sciencedaily.com/releases/2025/05/250508113112.htm https://www.sciencedaily.com/releases/2025/05/250507130511.htm Across the globe, monsoon rainfall switches on in spring and off in autumn. Until now, this seasonal pattern was primarily understood as an immediate response to changes in solar radiation. A new study shows that the atmosphere can store moisture over extended periods, creating a physical memory effect. It allows monsoon systems to flip between two stable states. Disrupting this delicate balance, would have severe consequences for billions of people in India, Indonesia, Brazil and China. Wed, 07 May 2025 13:05:11 EDT https://www.sciencedaily.com/releases/2025/05/250507130511.htm https://www.sciencedaily.com/releases/2025/05/250507125838.htm Climate scientists reveal that millions of today's young people will live through unprecedented lifetime exposure to heatwaves, crop failures, river floods, droughts, wildfires and tropical storms under current climate policies. If global temperatures rise by 3.5 C by 2100, 92% of children born in 2020 will experience unprecedented heatwave exposure over their lifetime, affecting 111 million children. Meeting the Paris Agreement's 1.5 C target could protect 49 million children from this risk. This is only for one birth year; when instead taking into account all children who are between 5 and 18 years old today, this adds up to 1.5 billion children affected under a 3.5 C scenario, and with 654 million children that can be protected by remaining under the 1.5 C threshold. Wed, 07 May 2025 12:58:38 EDT https://www.sciencedaily.com/releases/2025/05/250507125838.htm https://www.sciencedaily.com/releases/2025/05/250505204924.htm Hydrologists show most streamflow out of the West's mountains is old snowmelt on a multi-year underground journey. New study finds that spring runoff is on average 5 years old. Mon, 05 May 2025 20:49:24 EDT https://www.sciencedaily.com/releases/2025/05/250505204924.htm https://www.sciencedaily.com/releases/2025/04/250429102851.htm Scientists believe they have found a way to improve warning systems for vulnerable communities threatened by humid heatwaves, which are on the rise due to climate change and can be damaging and even fatal to human health. The study analysed how patterns of recent rainfall can interact with dry or moist land conditions to influence the risk of extreme humid heat in the global tropics and subtropics. Tue, 29 Apr 2025 10:28:51 EDT https://www.sciencedaily.com/releases/2025/04/250429102851.htm https://www.sciencedaily.com/releases/2025/04/250428222135.htm New research has revealed that expected, extreme changes in India's summer monsoon could drastically hamper the Bay of Bengal's ability to support a crucial element of the region's food supply: marine life. The scientists examined how the monsoon, which brings heavy rains to the Indian subcontinent, has influenced the Bay of Bengal's marine productivity over the past 22,000 years. Mon, 28 Apr 2025 22:21:35 EDT https://www.sciencedaily.com/releases/2025/04/250428222135.htm https://www.sciencedaily.com/releases/2025/04/250428221220.htm Flash floods resulting from extreme rainfall pose a major risk to people and infrastructure, especially in urban areas. Higher temperatures due to global climate change affect continuous rainfall and short rain showers in somewhat equal measure. However, if both types of precipitation occur at the same time, as is typical for thunderstorm cloud clusters, the amount of precipitation increases more strongly with increasing temperature, as shown in a recent study. Mon, 28 Apr 2025 22:12:20 EDT https://www.sciencedaily.com/releases/2025/04/250428221220.htm https://www.sciencedaily.com/releases/2025/04/250422132007.htm Dust-on-snow is a major threat to water in the Colorado River, yet no snowmelt forecasts integrate dust-accelerated melt. Using pioneering remote sensing techniques, new research is the first to capture how dust impacts the headwaters of the Colorado River system. The new method could help predict the timing and magnitude of snow darkening and impacts on melt rates on snowpacks, in real time. Tue, 22 Apr 2025 13:20:07 EDT https://www.sciencedaily.com/releases/2025/04/250422132007.htm https://www.sciencedaily.com/releases/2025/04/250421163222.htm Millions of years ago, a fiery plume rising from Earth’s mantle reshaped continents, closing ancient seas and lifting land that would forever change life on our planet. This upheaval forged a bridge between Africa and Asia, allowing elephants, giraffes, cheetahs—and even the ancestors of humans—to cross into new worlds. The timing was everything: if the connection had formed even a million years later, evolution might have taken a different course, and our story could have unfolded along an entirely different path. Mon, 21 Apr 2025 16:32:22 EDT https://www.sciencedaily.com/releases/2025/04/250421163222.htm https://www.sciencedaily.com/releases/2025/04/250417145258.htm Three consecutive years of drought contributed to the 'Barbarian Conspiracy', a pivotal moment in the history of Roman Britain, a new study reveals. Researchers argue that Picts, Scotti and Saxons took advantage of famine and societal breakdown caused by an extreme period of drought to inflict crushing blows on weakened Roman defenses in 367 CE. While Rome eventually restored order, some historians argue that the province never fully recovered. Thu, 17 Apr 2025 14:52:58 EDT https://www.sciencedaily.com/releases/2025/04/250417145258.htm https://www.sciencedaily.com/releases/2025/04/250417144856.htm A new study has investigated how the relationship between mean annual precipitation (MAP) and grassland biomass changes when one or more nutrients are added. The authors show that precipitation and nutrient availability are the key drivers of plant biomass, while the effects of plant diversity are minimal. Thu, 17 Apr 2025 14:48:56 EDT https://www.sciencedaily.com/releases/2025/04/250417144856.htm https://www.sciencedaily.com/releases/2025/04/250414124208.htm Engineers have created a sophisticated computer model that tracks how water moves in estuaries -- which is critical for evaluating climate variability and sea level fluctuation impacts for coastal communities. Mon, 14 Apr 2025 12:42:08 EDT https://www.sciencedaily.com/releases/2025/04/250414124208.htm https://www.sciencedaily.com/releases/2025/04/250411175457.htm For the highly populated coastal country of Bangladesh, once-in-a-century storm tides could strike every 10 years -- or more often -- by the end of the century, scientists report. Fri, 11 Apr 2025 17:54:57 EDT https://www.sciencedaily.com/releases/2025/04/250411175457.htm