A new study by the University of Delaware has identified global hotspots of drought-sensitivity and resilience in major crops like rice, corn, and soybeans. These hotspots reveal areas particularly susceptible to drought, such as the Midwestern US, eastern Brazil, and northern India.
A study proposes an operational framework combining machine learning models with Sentinel-2 data to estimate agricultural drought conditions in irrigated and non-irrigated maize fields. Deep Neural Network (DNN) achieved the best performance, showing higher prediction accuracy and lower error metrics for non-irrigated fields.
Research by CSU scientists found that soil organic carbon benefits crops the most during moderate water supply conditions, not extreme drought. Increasing soil organic carbon makes crops more stable and resilient from year to year.
Xinjiang's snowpack serves as a seasonal water reservoir, affecting agriculture and mountain-oasis systems. The region experienced an increase in warm-dry snow droughts after 2000, driven by both warming and precipitation deficits.
A new study found that drought timing is critical for plant survival, as it alters flowering schedules and reduces competition. Climate change may disrupt this delicate balance, highlighting the importance of considering both rainfall amount and timing.
Research finds biodiversity delivers largest gains under extreme drought in drier grasslands, with stronger effects from species complementarity. In contrast, forests show no comparable context dependence under extreme drought.
Research reveals that drought stress stimulates primary root elongation in plants, allowing them to adapt and survive. The plant hormone abscisic acid plays a crucial role in this process by integrating with other hormonal signals to promote primary root growth.
A six-year study on drought's impact on soil microbial communities found decreased biodiversity and shifted ecological configurations. This decline affects nutrient cycling processes and broader ecosystem health.
This study found that households in metropolitan areas with higher population density and income levels show stronger voluntary water conservation during drought. The AI-based scenario analysis showed that increased drought-related news coverage leads to significant water savings in these regions, but has a limited impact on rural areas.
A study published in Crop Science found that some corn plants have longer cells and deeper roots, enabling higher water absorption. This stretch phenotype can help breeders improve drought-tolerant crops. Researchers used computer simulations and microscopy techniques to confirm the trait's effects.
Researchers identify OsFeSOD3 gene that supports chloroplast health while enhancing plant survival under drought conditions. This discovery could help overcome crop yield limitations and improve climate-resilient crops.
Researchers found that a specific enzyme, GELP80, helps create flexible guard cells in plants, allowing them to conserve water and survive longer drought periods. This discovery could aid in optimizing crops for better water management and greater resilience to drought.
During the most severe drought in the Amazon basin, vegetation emitted new sesquiterpenes as stress signals and protective compounds. These emissions persisted long after the stress ended, revealing an adaptive response to oxidative stress.
A new study from the University of Oxford found that drought exposure is associated with increased risk of sexual, emotional and physical violence among adolescents in Southern Africa. Girls and young women face the highest risk of violence during drought conditions.
A new web tool, FishCast, helps forecast drought impacts on trout populations and support fisheries and water management in Montana's blue-ribbon rivers. The tool integrates weather information, historic trout population data, and streamflow records to predict drought risk and trout population trends.
Researchers discovered a novel gene BM-SZ that regulates sorghum's cuticular wax accumulation and drought tolerance. The study highlights the gene's essential role in epicuticular wax formation during sorghum evolution.
A recent study published in Cell has found that certain plants actively reduce their ability to take up iron when experiencing drought stress. This shift is driven by changes to plant roots that downregulate both immune systems and iron uptake machinery, allowing specific bacteria to thrive.
A new study led by the University of Michigan found that drought conditions in the Southwest have reduced the suitable habitat for herbivores, omnivores, and carnivores by at least 10%. The analysis of 12 years of data from GPS collars on mule deer, black bears, and cougars showed that drought is negatively impacting life across Utah a...
Researchers identify 'hooked hairs' in common beans that form tiny structures to defend against drought and nutrient starvation. These cells help young plants survive long before their mature root systems take shape.
Research on Rhizobacterial metabolites reveals that proline is a crucial osmoprotectant helping plants regulate osmotic pressure under drought conditions. PGPR strains improve lettuce plant survival rates and fresh weight recovery after drought stress, providing a scientific basis for developing high-efficiency microbial inoculants.
Fungal endophytes from cacti have been found to boost drought tolerance in cacao plants by controlling stomatal conductance and retaining more water. These microbes could provide a novel strategy for addressing climate change's impact on cacao production.
Researchers project that 28% of the global population will face heightened exposure to hot-dry extremes by the 2090s, concentrated in low-income, tropical nations. Limiting emissions could avert a lot of risk, with about 18% of the population facing this level of exposure under current climate action plans.
Researchers found a more reliable way to track seasonal productivity and drought stress in dryland ecosystems by combining multiple optical signals. This approach could improve drought monitoring and carbon-cycle modeling, supporting climate forecasting and ecosystem management.
This study reveals a novel post-translational regulatory mechanism of ABI4, where RBOHD-derived ROS mediate its oxidative modification. The oxidation enhances ABI4's DNA-binding affinity to the RBOHD promoter, promoting further ROS production in a positive feedback loop.
Salk Institute scientists created a high-resolution atlas showing how droughts affect plant cells. They identified a gene, Ferric Reduction Oxidase 6 (FRO6), that could be targeted to create more resilient crops. FRO6 expression in mesophyll cells partially maintained leaf growth under drought stress.
Researchers tracked scarlet monkeyflower populations in Oregon and California, finding that those that evolved fastest recovered from extreme drought. The study provides the first full documentation of
Researchers found that removing typhoon-induced precipitation leads to sharply declining soil moisture and more severe drought conditions worldwide. The effect of typhoons varies by region, acting as a condition that exacerbates drought in some areas, while mitigating it in others.
Microbial community shifts from biotic to abiotic drivers under drought, with legacy effects persisting upon rehydration. Soil properties dominate recovery stages, highlighting dual focus on biology and abiotic factors for ecosystem resilience.
A prolonged drought in southeastern Connecticut disrupted the balance of key nitrogen-cycling microbes in a coastal salt marsh. The study found that ammonia-oxidizing archaea and bacteria showed significant fluctuations during dry periods, leading to decreased temporal stability.
This study reveals a microRNA-based regulatory mechanism that fine-tunes drought tolerance by controlling reactive oxygen species homeostasis. The PomiR172d–PoARR module modulates membrane stability, antioxidant enzyme activity, and water-stress sensitivity.
Researchers have shown that ocean temperature patterns limit the global spread of droughts, with synchronised droughts affecting only 1.8% to 6.5% of global land. The study identified 'drought hubs' in regions like Australia, South America, and southern Africa.
A new study suggests that short periods of extreme heat and drought during flowering could become a major threat to global wheat production. This could lead to yield losses of up to three-quarters by 2090, highlighting the need for farmers to develop more heat-tolerant varieties.
A study analyzing news reports, social media posts, and internet search data during the 2022-2023 South Korea drought found that public views change depending on problem size and distance from people. Public interest, emotions, and behavior also shifted as the disaster scale changed.
Research found that oak tree microbiomes are resilient to environmental stressors like drought and disease, with subtle changes in root microbiota after prolonged drought. The study suggests a potential role for beneficial bacteria in supporting tree resilience and stability.
Climate change is projected to exacerbate agricultural droughts in Europe and western North America, even in areas with increasing rainfall. Soils will dry out faster than water can replenish them, leading to more frequent and severe crop droughts.
Knocking out the OsDT5 gene boosts drought resistance in rice, corn, and wheat, as well as the bryophyte Physcomitrium patens. The study provides a unified mechanistic framework for drought adaptation in terrestrial plants.
Researchers evaluated genetic effects of 25 traits in popcorn inbred lines under water-stressed conditions, revealing key mechanisms for improving yield stability. The study identified physiological markers such as NDVI and SPAD for drought tolerance screening, highlighting potential breeding strategies to enhance drought tolerance in ...
Global climate change intensifies extreme weather events like heatwaves and droughts, altering wildfire patterns worldwide. The study quantifies the impact of 'hot drought' on 2025 LA wildfires, showing an increased risk by up to 210%. Additionally, strong Santa Ana winds played a significant role in fire spread.
A study using RGB high-throughput phenotyping demonstrates that simple imaging can distinguish between drought and disease in tomatoes. The method identified distinct stress signatures for various biotic stresses, including viruses, fungi, and nematodes, as well as drought.
The report debunks the 'climate war' theory, revealing that Syria's civil war was rooted in policy and socioeconomic failures. The agricultural sector rebounded quickly after a severe drought, with satellite imagery showing cropland activity returned to near-record levels just before the war began.
A novel phenotyping platform has identified a major QTL and candidate gene GmWRKY58 linked to drought resilience in soybean. The low-cost platform uses automated load-cell weighing devices to record pot weight, estimating transpiration rates and detecting key traits such as stress recognition time point and decrease under stress.
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 severe drought around 61,000 years ago may have driven the decline and eventual extinction of Homo floresiensis, also known as Hobbits. The species abandoned their cave in Liang Bua due to prolonged drought and competition for resources.
A study found that overexpressing the poplar sex-determining gene FERR improves drought tolerance by enhancing stomatal closure, increasing root biomass, and boosting antioxidant activities. The findings suggest that FERR plays a critical role in regulating the ABA signaling pathway to boost plant resilience against water scarcity.
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 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.
The study reveals that North America and Europe will experience significant warming (3.7-3.8°C) and drought expansion by the end of the 21st century due to land-air coupling, which amplifies the impact of GHG emissions. If uncontrolled, this could lead to severe climate risks, including reduced Gross Primary Productivity.
Researchers found extreme warming of Amazon lakes in 2023, with water temperatures soaring above 40°C and lake levels plummeting to record lows. The study highlights the vulnerability of tropical lakes to intense warming and calls for better monitoring of these ecosystems under climate change.
A new University of California, Davis study finds that drought in California pushes the price of water from rivers, lakes, and reservoirs up by $487 per acre-foot, more than triple the cost during an average wet year. Managing groundwater and surface water together could keep water prices steady and support the state's economy.
A new algorithm detects and quantifies dense root clusters from digital images, achieving higher accuracy than traditional visual trait methods. This approach provides a scalable, customizable tool for high-throughput plant phenotyping and identifies genetic markers linked to adaptive traits.
A recent University of California San Diego-led study shows that understanding the origin of rainfall is crucial in reshaping drought planning and land management. The research reveals that regions with high reliance on land-sourced moisture are more vulnerable to drought, soil moisture loss, and yield declines.
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 found that soil microbes retain a long-term memory of past climate conditions, influencing plant responses to new droughts. Microbial legacies from drier soils improved native grasses' drought tolerance but not maize.
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 study warns that peatland carbon loss could quadruple under extreme drought events and warmer temperatures, threatening the planet's carbon sink. Researchers found that elevated carbon dioxide levels exacerbated carbon release during droughts, wiping out hundreds of years of accumulated carbon.
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.
Research findings from the International Drought Experiment reveal that consecutive extreme drought years lead to significant declines in ecosystem productivity, with some sites experiencing a 2.5-fold reduction in productivity over four years. This cumulation is attributed to species mortality, failed establishment, and changes in com...
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 used advanced 3D canopy reconstruction to study forest adaptation to climate extremes. Thinning improves canopy light availability, boosting carbon uptake even under drought, while reduced rainfall suppresses photosynthetic performance.