Articles tagged with Droughts
Recent research reveals that volcanic eruptions can cause unpredictable weather patterns, including volcanic rain, dust storms, and unstable Antarctic air. The study also found that the Antarctic surface atmosphere has become less stable and more prone to gravity waves since the 1950s.
The Amazon is shifting to a hotter, drier climate with more intense droughts, stressing trees and increasing mortality rates. By 2100, hot drought conditions could occur up to 150 days per year, affecting tree species that are vulnerable to heat stress.
A study published in Science Advances found that unusually large particles of wildfire smoke had a significant cooling effect on the region they were observed in, increasing outgoing radiation by 30-36% compared to smaller smoke particles. This effect has not been included in current climate models.
Researchers at Colorado State University found that some tropical forest plants are adapting to drought by growing longer root systems, potentially helping reduce vulnerability. The study's findings suggest flexibility under drying conditions may rescue the forest, but long-term implications remain uncertain.
A new study reveals that plant gas emissions are triggered by rapid changes in weather, not just dry conditions. The research shows that vegetation responds immediately to shifts in humidity and temperature, changing the rate of emissions of biogenic volatile organic compounds (BVOCs) into the air.
A study suggests that prolonged droughts lasting over 85 years contributed to the decline of the Indus Valley Civilization. The civilization, which existed around 5,000-3,500 years ago, was characterized by advanced cities and sophisticated water management systems.
Researchers investigate how adjacent cities exacerbate each other's heat island effects. A study also highlights the need for improved hindcasting infrastructure in climate science. Additionally, a campaign monitors pinned clouds over industrial sources of heat and finds that trees are more reliable against heat stress than buildings.
A new study found the Rio Grande basin is severely depleted, with only half of used water being replenished by natural processes. The primary cause of overconsumption is irrigated agriculture, particularly cattle-feed crops like alfalfa and grass hay.
Researchers project that Chile's glaciers will only be able to contribute half of today's runoff meltwater during extreme dry summer months. They call for effective water management strategies and coordinated global climate policies to mitigate future megadroughts.
A recent study published in Global Change Biology found that functional diversity helps keep forest growth stable during prolonged periods of drought. Trees with different water-use strategies show stronger growth in drought years than those with opposite strategies.
A recent paper in the journal Science investigates the impact of drought on grasslands, finding that moderate droughts do not lead to long-term losses. In contrast, extreme droughts can cause significant species loss and reduced plant life. The study's results have implications for global carbon and climate modeling.
The Lancet Countdown report links climate change to violence and community health, emphasizing the need for social and economic changes to prevent conflict. Strengthening food systems and ensuring emergency responses can reduce grievances and protect healthcare workers.
Researchers studied the genetic response of umbrella acacia and splendid thorn acacia to drought stress. The study found that umbrella acacias prioritize continued growth over water conservation when water is scarce, using up all accessible water to survive severe droughts. In contrast, splendid thorn acacias invest in water conservati...
Researchers identified AMO as key driver of compound hot drought events in Northern East Asia, with periods of weakening and strengthening linked to changes in climate. The study provides a new physical perspective for understanding variability in the region's hot droughts and offers insights for improving decadal climate prediction.
A new report published in BioScience reveals Earth's climate crisis is accelerating at an alarming rate, with 22 of 34 planetary vital signs now at record levels. The study emphasizes that climate change mitigation strategies are available and urgently needed to limit warming.
A new review highlights how exogenous phytohormones can strengthen sugarcane's ability to cope with both drought and waterlogging. Emerging technologies like robotic systems and nanotechnology are being developed to deliver hormones precisely when and where they are needed.
Research reveals that even native ecosystems can't adapt to extreme drought conditions, leading to significant impacts on plant growth and productivity. Productivity declines by up to 77% in four years under consecutive extreme droughts.
A global research effort by Colorado State University reveals that extreme, prolonged droughts in grasslands and shrublands result in more than twice the loss of plant productivity compared to moderate droughts. The study suggests that these ecosystems lose their ability to recover over time under prolonged dry conditions.
Researchers found a strong link between compound droughts and wildfires in California, leading to increased fine particulate matter (PM2.5) concentrations. The study shows that severe droughts can substantially raise wildfire risk, with PM2.5 levels increasing by 9.5·m³ under extreme conditions.
A recent study found that UK heatwaves have led to unseasonable drying of vegetation, bypassing natural ecological processes that limit the spread of wildfires. The extreme heat conditions increased the risk of wildfire incidents, with a 500% increase in 999 calls and 14 major incidents during the 2022 heatwave.
Recent research from the American Meteorological Society reveals a false global heat record, suggests that severe weather events are increasing in frequency, and predicts an expansion of fire-prone areas. The study also examines the impact of cold wakes on tropical cyclone rainfall and finds that they intensify with global warming.
Researchers found compound drought-heatwave events rippling and persisting through the night, exacerbating heat-related health risks. Soil dryness plays a key role in triggering these extreme events, which can affect crops, wildfires, and daily life.
A new study found that historic droughts could become common for Gatún Lake, the main source of water for the Panama Canal locks. The study projects that water levels will decrease and increase evaporation under high-emissions scenarios.
A new study reveals that global warming is accelerating the risk of multi-year droughts leading to extreme water scarcity. The frequency of Day Zero Droughts will increase sharply over the coming decades, affecting 750 million people globally by the end of this century.
A new study found that proactive forest management can significantly reduce the risk of high-severity wildfires by 88% and stabilize carbon stocks. The research analyzed over 200 fuel reduction projects in California's Central Sierra and found that treated forests stored carbon more durably, even after extreme droughts.
Researchers found that deforestation is responsible for a significant reduction in rainfall and increase in temperature in the Amazon during the dry season. The study quantifies the impact of forest loss and global climate change on the biome, highlighting the importance of preserving standing forests to maintain climate resilience.
A new study reveals that drought and ozone pollution significantly reduce soybean yield, regardless of drought stress levels. Researchers found that elevated ozone concentrations disrupt photosynthesis and hormone signaling in plants, leading to reduced yield and seed development.
Research led by the University of Utah found that industrial private land has nearly one-and-a-half times higher odds of high-severity wildfire compared to publicly owned forests. Reducing tree density can mitigate megafire risk even in extreme weather conditions.
A cross-sectional study of 42 countries found that drought conditions are associated with increased intimate partner violence risk. The study suggests a pressing need for initiatives to prevent domestic violence in response to climate change.
A study using stalagmite analysis found eight wet season droughts lasting over three years between 871-1021 CE, contributing to the Maya civilization's decline. This climate data aligns with historical and archaeological evidence, providing a new framework for analyzing human-climate interactions.
A new data-driven model predicts repeating drought and rain cycles in the central Mediterranean, supporting long-term water planning. The study offers a simpler alternative to conventional Global Circulation Models for understanding climate-related phenomena.
Researchers analyzed 20,000 tree-ring records to find that tropical trees grow 2.5% less during droughts, but recover almost completely the following year. Drier regions show greater reductions in growth and increased tree mortality.
The Amazon has experienced a 163% increase in degradation and a 54% decrease in deforestation between 2022 and 2024. This 'negative balance' of biome protection threatens Brazil's international climate commitments, particularly its target to reduce greenhouse gas emissions by 59-67% by 2035.
A new study found that a wildfire and drought led to an increase in jaguar population density in the Brazilian wetlands. The site, which is home to a unique population of jaguars with aquatic diets, may serve as a climate refuge, buffering extreme climate events.
A recent study from the University of Texas at Austin finds that climate change may be disrupting the natural Pacific Decadal Oscillation cycle, which brings needed rain to the region. This could lead to prolonged droughts in the southwest U.S., affecting water resources like the Colorado River.
A new tool helps understand original landscape functioning and supports current land use strategies by generating realistic drone footage of past landscapes. The study uses AI to create photorealistic depictions of the Great Hungarian Plain before water regulations.
A new study finds that climate change and aerosols have led to lower precipitation in the Southwest, making drought inevitable. The research predicts continued drought conditions as the planet warms.
New research reveals that lakes relying on groundwater connections maintain stable water levels and buffer climate change impacts. Shallow lakes are vulnerable to rising temperatures and reduced rainfall due to high evaporation rates.
A comprehensive report cataloging the most widespread and damaging drought events since 2023 reveals food, water, energy crises and human tragedies. The 'Drought Hotspots Around the World 2023-2025' report underscores the need for systematic monitoring of drought's impacts on lives, livelihoods, and ecosystems.
A new review paper explores six approaches to conserving water nationwide, including growing crops suited to local climates, using treated wastewater, and reducing food waste. The authors emphasize the need for a multi-faceted approach due to the inherent complications of each strategy.
A multi-country study found that extreme droughts in Low Income Countries (LMICs) are associated with an increase in sexual violence against adolescent girls and young women. The study highlights the indirect impact of climate change on social vulnerabilities in these regions.
A study found that droughts can decrease nectar calories in zucchini flowers by up to 95%, harming pollinators and plants. Increased rainfall can positively affect nectar calorie production, but heavy rainfall events can have devastating consequences for ecosystems.
Researchers at Uppsala University predict that concurrent extreme events will become more frequent due to climate change, posing new challenges for preparedness. The study examines six types of events and finds a sharp increase in combinations of heatwaves and forest fires, as well as heatwaves and droughts, in various regions worldwide.
Researchers at Colorado State University have demonstrated the reversal of embolism in a type of wild grass, which can recover from extended drought within 24 hours. This finding has significant implications for improving agricultural productivity and food security, as it could potentially be bred into crops to make them more resilient...
A new study finds that increasing atmospheric evaporative demand is making droughts 40% more severe globally over the past 40 years. As the atmosphere warms, air can hold more moisture, leading to increased water demand and pulling more water from soils, rivers, and plants.
A new study from Goethe University confirms that climate change and extreme weather events are devastating amphibian diversity. Analysis of global weather data reveals a direct connection between increased heat waves, droughts, and declining salamander populations.
A new study from Colorado State University reveals that photovoltaic (PV) arrays in grasslands can improve soil moisture levels and increase plant growth, particularly during dry years. The research found a 90% increase in grass production on the east side of panels compared to neighboring open sites.
Researchers at UCSF have successfully engineered a shapeshifting protein that can change shape in response to signals, potentially leading to breakthroughs in medicine, agriculture, and environmental applications. This achievement marks the first step towards creating stable yet dynamic proteins using AI-augmented protein engineering.
A new international study published in Nature Ecology & Evolution found that fertilizer can help plants survive short-term periods of extreme drought. The researchers added nitrogen, phosphorus, and potassium to 26 sites across 9 countries and found a 24% increase in plant growth with fertilizer addition.
A long-term shift towards drier conditions is reshaping landscapes and livelihoods globally, affecting 40% of Earth's land and 2.3 billion people. The research highlights solutions to adapt to a future where water is no longer guaranteed, including smarter irrigation strategies, data analytics, and restoring degraded land.
A study published in the Journal of Geophysical Research: Solid Earth reveals that droughts and associated water loss are the primary cause of South Africa's land uplift. This finding challenges the previously assumed mantle flow explanation and highlights the importance of monitoring groundwater reserves due to climate change.
Researchers used satellite data to analyze the impact of dust on snowmelt in the Colorado River Basin. The study found that dust-driven melting tends to peak earliest and be most intense in central-southern Rocky Mountains, accelerating spring melt rates by up to 1 mm water-equivalent per hour.
A tree-ring study published in Climatic Change suggests that severe summer droughts in 364, 365 and 366 CE led to the 'Barbarian Conspiracy' of 367 CE. The researchers argue that these droughts triggered food shortages and reduced grain supply to Hadrian's Wall, providing a motive for the rebellion.
Researchers found that high tree mortality in upper canopy can promote oak regeneration when maple is removed from understorey. Plantings on thinned forest plots showed fewer signs of drought stress, supporting oak growth.
Recent research highlights increased fire activity in the western US, with wildfires becoming less prone to calming down at night. Meanwhile, extreme turbulence on hurricane flights has led to a new 'bumpiness' metric. Climate extremes are also evident in shifting energy demands for heating and cooling in Chinese megacities.
A new method using free software and a drone with a low-cost camera has been developed to select drought-tolerant corn plants. The approach allows for optimized data collection, faster processing, and reduced costs compared to conventional methods.
A single dry winter decimated California’s salmon and trout populations, with coho salmon disappearing entirely from three coastal watersheds. Chinook salmon were able to cope by shifting their breeding activities downstream, but steelhead trout were eliminated from numerous individual tributaries.
The California Solar Canal Initiative brings together seven leading research universities to identify optimal locations for generating renewable energy and conserving land statewide. By covering large sections of the state's canal network with solar panels, researchers aim to conserve water, reduce air pollution and generate clean energy.
Prof. Günter Blöschl's research has made significant contributions to understanding the drivers of increasing flood risks under climate change and reveals that the last two decades have been markedly flood-prone compared to historical records.
Scientists at CRAG have made significant progress in understanding sorghum's molecular mechanisms and improving its breeding, focusing on enhancing drought tolerance. The team has identified key genetic mechanisms and developed an efficient transformation method using a ternary vector system.