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.
A new computer model, GeoFlame VISION, uses AI and satellite imagery to produce a dynamic wildfire risk map for the entire US. The model shows that California's eastern, southwestern, and northwestern parts are at high risk due to Santa Ana winds.
Researchers at the University of Maryland analyzed air samples from College Park, Md., and found that chemical compounds from Canada's historic 2023 fires persisted in the atmosphere, forming an 'atmospheric soup.' The study provides insights into the long-term effects of wildfire smoke on human health and the environment.
Research found a 42% increase in respiratory virtual visits among those living near burn zones, while cardiovascular virtual visits rose by 44%. In-person outpatient visits also increased substantially.
The 2025 Los Angeles wildfires led to substantial increases in acute health care utilization, particularly through virtual care-seeking. This study emphasizes the importance of monitoring healthcare preparedness and response in the face of rising climate-related disruptions.
A team of scientists has uncovered evidence of ancient wildfires during the Early Triassic epoch, about 250 million years ago. The findings suggest that wildfires played a significant role in shaping ecosystems during this time period, contrary to previous assumptions based on a lack of charcoal in the geologic record.
Research shows strong Midwest summer storms can puncture the stratosphere, bringing aerosols and burning biomass from western wildfires. This could affect the ozone layer's stability and warm the stratosphere.
A new survey conducted by UC Berkeley researchers found that approximately 75% of agricultural workers in Sonoma County have worked during wildfires since 2017. The study also found that half of the farmworkers reported having ailments like headaches or sore throats after working during a wildfire.
Human-driven climate change makes wildfires in parts of South America and Southern California much larger and more destructive. Climate models warn that severe heatwaves and droughts will make extreme wildfires more frequent and intense worldwide.
Researchers analyzed feces samples from 11 herbivore species in Namibia's Etosha National Park to understand how environmental factors shape their gut microbiomes. The study found five types of bacteria serving as environmental indicators, which could help monitor ecosystem changes and animal adaptation.
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.
Researchers found that weaker lightning during thunderstorm development can ignite forest fires, posing a higher risk due to distinct atmospheric conditions like low precipitation and strong winds. This discovery sheds new light on the prevention and control of lightning wildfires in mountainous areas globally.
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.
The University of Oklahoma will receive a $19.9 million award to develop the KaRVIR system, a groundbreaking dual-Doppler 3D mobile Ka-band imaging radar that will enhance atmospheric science research and provide critical insights into weather systems and wildfires.
Catastrophic wildfires are increasing worldwide, posing significant challenges for governments. A study suggests investing in proactive wildfire mitigation and prevention is more cost-effective than reactive response and recovery.
Wildfire disasters worldwide have become markedly more burdensome over the last 40 years, tripling in fatality events and increasing economic losses fourfold since 1980. The escalation is driven by intensifying climate conditions and human activities such as land-use shifts and fire suppression policies.
A new study finds that large wildfires like those in Colorado, Oregon, and California increase ozone concentrations by 21 parts per billion, exceeding health standards. The research team developed a computer model to simulate the effects of wildfire smoke on ozone levels, highlighting the urgent need for air quality monitoring.
A new study estimates that US wildfires could cause up to 70,000 deaths annually by 2050 due to increased smoke pollution. The researchers also found that no community is safe from smoke exposure and estimated economic damages could reach $608 billion annually.
Climate change is expected to bring increased damages and costs for European forestry, with gains in Northern Europe and losses in Central and Southern Europe. The study highlights the need for strategic adjustments to forest management to reduce economic losses and foster more climate-resilient forests.
A team led by Joe Ripberger from the University of Oklahoma aims to create a unified national approach to wildfire warnings. The project will focus on understanding fire and atmospheric interactions, social and behavioral science questions, and building a transdisciplinary network with practitioners and researchers.
A growing body of research links environmental pollutants to worsened health and shorter life spans in childhood cancer survivors. The study found that only 25% of pediatric oncology providers felt comfortable discussing environmental pollutant impacts with patients.
A new study finds that wildfires in the western US worsen local air quality but unexpectedly improve air quality in the eastern US due to heat's effect on weather patterns. This overlooked factor significantly alters regional air quality, with climate models overestimating pollution impacts.
A new study predicts an increase in western US wildfires sparked by lightning strikes, with 98% of the region seeing more risk days by 2060. The western US is expected to see a significant rise in lightning days, with areas like Oregon and Idaho experiencing up to 12 more days per summer.
A new CU Denver study finds that climate change and wildfires are disrupting dragonfly mating traits, threatening some species with local extinction. The research highlights the importance of considering reproductive success in conservation biology.
Researchers at the University of Minnesota developed AI-guided aerial robots to detect, track and analyze wildfire smoke plumes. The technology provides high-resolution data collection across large areas at a lower cost than satellite-based tools, enabling more accurate computer models for air quality predictions.
Researchers found that wildfire chars can suppress methane production by supporting the growth of bacteria that outcompete methanogens. This natural process could have important implications for mitigating greenhouse gases and climate change.
A new UC Berkeley-led study demonstrates how home hardening and defensible space can significantly reduce wildfire risk. The research found that these strategies, when combined, can double the number of homes that survive a blaze and reduce structure losses by up to 50%.
A new study by UN University scientists finds that the global human population directly exposed to wildland wildfires increased by 40% since 2000, with 85% of those in Africa. This has led to 2,500 direct deaths and 1.5 million smoke-related deaths each year.
Scientists studying the devastating Lāhainā, Maui fires found that deaths were two-thirds higher than expected in August 2023, and 367% higher during the most intense week of the blaze. The researchers call for improved disaster preparedness and investment in restoring Native Hawaiian plants and agroecological systems.
A study published in Science found that total burned area declined globally from 2002 to 2021, but human exposures to wildfires surged by nearly 40%, with Africa accounting for 85% of all incidents. Proactive mitigation strategies are crucial to protect communities from the growing threat of wildfires.
A team of UBC Okanagan students developed an adaptive model that can automatically detect subtle shifts in complex images, improving accuracy for doctors and scientists. The technology, called MEBS, uses advanced mathematics to pick out important details, helping to spot illnesses sooner and track wildfires more effectively.
A new study suggests that exposure to wildfire-derived PM2.5 is linked to increased mortality and morbidity, with a 93% underestimation of the actual death toll. The research estimated 535 annual deaths from all causes due to short-term exposure to wildfire smoke.
A recent study explores how climate and vegetation index anomalies pre-conditioned the landscape for catastrophic fires. The research found that significant rainfall deficits and reduced snowpack severely diminished soil moisture, leading to cumulative vegetation stress.
A recent study analyzed hourly data from nearly 750 low-cost and regulatory air pollution sensors throughout LA to understand the impact of wildfires on air quality. The findings suggest that combining different data sources, including ground-based sensors and satellite data, can provide more accurate and comprehensive information.
New research finds that wildfire smoke substantially increases ozone concentrations, even in remote areas with few human emission sources. The study suggests that removing anthropogenic NOx emissions would not eliminate ozone problems, as fires can still produce ozone.
Combining federal monitors, low-cost sensors, and satellite data can provide a more complete picture of local air quality, enabling people to make safer choices in real-time. The study highlights the importance of timely and accurate air quality information during wildfire events.
A study by Boston University School of Public Health and the University of Helsinki estimates that the Los Angeles wildfires in January 2025 resulted in at least 440 excess deaths, nearly 15 times higher than the official 31 deaths reported. The fires caused widespread destruction and disrupted healthcare services.
A new study published in JAMA found that the August 2023 Maui wildfire led to a 46% increase in statewide suicide and overdose death rates, with a 97% increase in Maui alone. The researchers suggest direct exposure and indirect effects, such as concern for loved ones, contributed to the rise in deaths.
Research shows that the 2025 Los Angeles wildfires resulted in an estimated 440 excess deaths, while the 2023 Maui wildfires led to immediate increases in suicide and overdose deaths. Higher social support was linked to improved mental health outcomes but did not buffer physiological effects.
A new IIASA study highlights the critical role of socioeconomic conditions in shaping wildfire economic losses. By adopting sustainable development pathways, countries can reduce wildfire-related damages by up to 2% of GDP in low-income nations.
Researchers estimate that lightning kills around 320 million trees each year, resulting in significant biomass loss. This equates to an annual emission of 0.77-1.09 billion tons of CO₂, comparable to the emissions from wildfires.
Researchers at USC Viterbi School of Engineering developed AI model Allegro-FM, simulating billions of atoms simultaneously. This enables simulations 1,000 times larger than previous models, accelerating materials design and discovery.
Researchers at USC Viterbi School of Engineering developed AI model Allegro-FM to simulate behavior of billions of atoms simultaneously, enabling simulations 1,000 times larger than previous models. This breakthrough accelerates development of carbon-neutral concrete with unprecedented scalability.
The elimination of federal and state tools to monitor and forecast climate disasters imperils public health efforts. Climate data is crucial for preparing and responding to heatwaves, wildfires, floods, and hurricanes, particularly affecting vulnerable populations.
A new study from Colorado State University and Western Colorado University found that aspen forests can act as natural firebreaks, slowing fires' spread. Aspen trees with high moisture content and chemical differences reduce flammability, making them more resistant to burning.
A new approach to forest fire emergency response uses data-driven forecasting to anticipate where fires are most likely to occur. The system continuously adapts to changing conditions, ensuring resources are always positioned where they can be most effective.
Researchers found consistent evidence of reduced global atmospheric oxidation in 2020, driven by decreased nitrogen oxide emissions and extreme wildfires in the Southern Hemisphere. This decline had a significant impact on methane concentrations, contributing to one of the largest annual increases ever recorded.
Researchers found that prescribed burns can reduce the severity of subsequent wildfires by an average of 16% and net smoke pollution by an average of 14%. The study highlights a key nuance: prescribed fires were significantly more effective outside of the wildland-urban interface (WUI) than within it, with benefits seen in non-WUI zones.
A study of 100,000 water samples from 500 river basins found elevated levels of contaminants like organic carbon, phosphorus, nitrogen, and sediment persisting for years after wildfires. Water managers can use this data to inform planning strategies for increasing wildfire resilience.
A study published in JACC found that long-term exposure to wildfire smoke may increase the risk of heart failure, particularly among older adults, women, and those living in lower-income areas. The risk was found to be higher with increased levels of PM2.5 air pollution from wildfires compared to other types of air pollution.
A new study reveals that wildfires have a profound impact on water systems, affecting microbial communities and nutrient cycling. The researchers found that moderate heat processing from fires leads to more bioavailable carbon for microbes, but also disrupts the nitrogen cycle and natural balance of aquatic ecosystems.
A recent study found that wildfires in the US West Coast in 2020 led to the disruption of outdoor activities, which in turn shaped the circulation of respiratory pathogens such as influenza and COVID-19. This research highlights the indirect health impacts of extreme weather events.
Scientists at the Naval Research Laboratory are working with NASA to better understand pyrocumulonimbus clouds, which can inject smoke into the upper atmosphere and alter weather patterns. The Injected Smoke and Pyrocumulonimbus Experiment (INSPYRE) aims to enhance predictive weather modeling through detailed analysis of wildfire-induc...
A new Stanford University report examines how US power utilities are confronting the escalating threat of wildfires. The research team found that while progress has been made in some Western states, utilities in high-risk areas remain underprepared.
A new University of Washington study projects that increasing boreal fires in Canada and Siberia will slow global warming by 12% globally and 38% in the Arctic. The fires reduce sea ice loss and cooler winter temperatures, despite their own warming effects.
A PSU study found that fires can cause trees to die in subsequent years, affecting forest regeneration. The researchers mapped annual changes in live tree cover and found that older conifer trees and sensitive species were most likely to die later.
Researchers measured air quality over 19 months to capture both smoky and clear days, finding increases in fine aerosols and carbon monoxide during wildfires. The study has implications for weather, cloud formation, and public health.
The January 2025 Los Angeles wildfires, ranking as the 2nd and 3rd most destructive wildfires in California's history, highlighted alarming trends of increasingly frequent and destructive urban wildfires. The study emphasizes the need for proactive measures to protect vulnerable communities in an era of increasing extreme events.
This study reveals low wildfire activity across the Northern Hemisphere during PETM. The spatiotemporal evolution of wildfires was driven by climate change and vegetation succession, suppressing fire occurrence.
A new report models current wildfire risks across the Southeastern US, projecting changes by the middle of this century under various scenarios. Prescribed fires can reduce wildfire risk through reduced fuels, promoting healthy forest growth.