A recent study has found that intense droughts and wildfires during the last El Niño climate phenomenon, combined with human disturbance, led to a significant decline in dung beetle numbers. The beetles, which play a crucial role in spreading nutrients and seeds, fell by more than half and took at least two years to recover.
Scientists have identified a key factor predicting post-wildfire mudslides: dry sediment loading, which adds 3-10 feet of debris to mountain channels. Authorities can use lidar technology to map patterns of sediment loading and clear channels before storms hit.
Researchers found an 85% greater snow depth in burned areas compared to non-burned areas. Severe wildfires can lead to increased flood potential, loss of nutrients, and erosion for downstream communities.
A CU Boulder-led study reveals human-sparked fires are becoming more frequent and occurring over longer seasons, presenting new challenges for U.S. wildfire managers and firefighters. The shift toward more human-caused fires results in decreased fire intensity and size, but may not be a good thing due to changes in ecosystem roles.
Researchers tracked pollutants from Canadian and US wildfires to reach NYC, causing significant increases in air quality advisories. The study highlights the need for policy-makers to consider long-term air quality management plans due to increasing wildfire smoke.
To tackle massive wood fuel accumulations, California needs significant fuel treatments, including prescribed burns or vegetation thinning. The researchers propose solutions to overcome barriers, such as a risk-averse culture, limited finances, and complex regulations.
Wildfires in south eastern Brazil produce airborne pollution that worsens air quality in major cities such as Sao Paulo, cancelling efforts to improve the urban environment. The study found long-range transport of smoke contributes to poor air quality and smog in cities up to 2,000 km away.
NASA scientists used data from Suomi NPP to track Australian bushfire smoke globally, revealing its circumnavigation of the Earth. The satellite's Aerosol Index layer helps identify and track aerosols produced by wildfires, dust storms, and other events.
A recent study published in Science Advances finds that global warming is the primary cause of extensive wildfires in Siberia. The research reveals that climate conditions, such as changes in atmospheric pressure and temperature, play a crucial role in fire spread.
Tropical cyclone Blake made landfall in Western Australia, causing fires to rage in the southern part of the state. NASA-NOAA's Suomi NPP satellite provided an image showing the storm's center inland, with bands of thunderstorms stretching far south and red spots indicating wildfires burning.
A small wildfire in San Diego County in 2017 resulted in a significant increase in children visiting the emergency room for breathing problems, according to new research. The study found that children under the age of 12 were more likely to develop breathing issues leading to an ER visit.
New studies examine prescribed fires' effectiveness and explore wildfires' characteristics as predictors of firefighting resource demand. Researchers aim to improve wildfire risk assessments and optimize fire management resource allocation.
A study in Scientific Reports found that wildfire severity can increase bat diversity and richness, while pyrodiversity enhances occupancy rates for certain species. The authors suggest that bats may be resilient to increasing wildfires, which could impact conservation strategies.
Researchers created the first comprehensive North American Wildland Fuel Database to improve wildfire and smoke predictions. The tool incorporates best available measurements of vegetation, allowing fire managers to see where fuel information is missing, ultimately informing more realistic smoke predictions.
A new study predicts that wildfires in Oregon's southern Blue Mountains will become more frequent and severe due to climate change. By the end of the century, high-elevation species may be replaced by more fire-resistant ones, leading to a less resilient landscape.
The National Science Foundation grant will support the development of an open knowledge network to provide better information for agencies managing wildfires, water quality, and biodiversity conservation. The team aims to create automated methods to collect and share relevant information, improving decision-making processes.
Researchers from McGill University project abrupt changes in the Arctic climate and permafrost, potentially leading to increased wildfires. The study suggests a doubling of wildfire severity over one year in regions like the Northwestern Territories and Yukon.
A study found that fine particulate matter increased by 5% between 2016-2018, leading to 9,700 additional premature deaths and $89 billion damages. The rise was associated with economic activity, wildfires, and decreased enforcement of the Clean Air Act.
Existing fire blanket technology can shield isolated buildings from short wildfire attacks, but technological improvements are required for severe fires and high-housing-density areas. Further research is necessary to develop more effective materials and deployment methods.
Research reveals that coniferous forests struggle to recover after wildfires due to limited seed availability, particularly near severe burn zones. Warm and dry conditions further impede new tree seedling establishment. Land managers are advised to concentrate reforestation efforts in cool, wet areas.
Researchers developed nontoxic, biodegradable viscoelastic carrier fluids to enhance fire retardant retention on wildfires-prone vegetation. Treating high-risk locations with these fluids may help prevent wildfires from starting during peak season.
A preventive treatment developed by Stanford researchers could greatly reduce the incidence and severity of wildfires. The approach involves an environmentally benign gel-like fluid that helps common wildland fire retardants last longer on vegetation.
Wildfires can lead to significant impacts on soil infiltration, triggering flooding and erosion. Sediment flows can carry large amounts of debris downstream, posing a threat to reservoirs. Researchers are developing new models to predict the risks of post-wildfire sediment on reservoirs.
A UCI team developed a new technique for predicting wildfires' final size, focusing on specific ignitions that pose the greatest risk of getting out of control. The model can forecast whether a blaze will be small, medium or large by its end, helping allocate scarce firefighting resources.
Researchers analyzed core samples from the Chicxulub impact crater, revealing that top layers contained soil biomarkers suggesting a tsunami brought terrestrial material back to the site. The study also found evidence of impact-induced wildfires and a lack of sulfur-rich evaporites, implying a massive release of sulfate aerosols.
Scientists confirm scenario that dinosaurs died due to global cooling after asteroid impact, with rocks recording wildfires and sulfur absence within 24 hours. The research provides the most detailed look yet into the aftermath of the catastrophe.
Researchers at Brigham Young University developed a new wildfire model that uses plant chemistry to predict how quickly wildfires will burn. The study found that the type of shrub species affects the speed of combustion and chemical production, enabling more efficient fire management.
A recent study by Arizona State University researchers found that tarballs, tiny organic particles formed during wildfires, can significantly impact local and global climate. The team's analysis revealed that tarballs form through chemical and physical changes of organic aerosols within the first hours following smoke production.
A new study by Lawrence Berkeley National Laboratory used supercomputers to analyze the effects of wildfires on hydrological changes in a California watershed. The research found that post-wildfire conditions resulted in greater winter snowpack and subsequent summer runoff, as well as increased groundwater storage.
A new study published in Frontiers found that Amazon deforestation causes local climates to warm, particularly in areas with severe tree cover loss. Intact forests maintained more climate stability, while disturbed forests experienced larger temperature increases during dry periods.
Research predicts a 25% decline in evergreen conifer trees and a nearly doubling of broadleaf deciduous trees by 2100. This shift will have significant ecological and climatic implications for the entire ecosystem and carbon cycle.
Research finds that older stands of trees protect legacy carbon from burning, while younger stands do not. This shift could change boreal forests from a carbon sink to a source, exacerbating climate change. The study's findings have global implications for future climate scenarios.
A new study found that frequent and large wildfires are releasing stored carbon in boreal forests, transforming them into a source of carbon instead of a sink. This shift has significant implications for global climate change and greenhouse gas levels.
A recent paper by Montana State University researchers highlights the need for communities to adapt and transform themselves to be more resilient to wildfires. The authors argue that current approaches are not working, especially as fire seasons get warmer and longer.
Scientists used a state-of-the-art climate model to study the lofting and movement of the colossal Canadian wildfire smoke cloud, which contained only about 0.3 million tons of soot. The modeling validated previous theories on nuclear war impacts and provided new insights into potential global climate effects.
Scientists studied a massive wildfire smoke plume that lasted for nearly nine months, providing an ideal opportunity to test climate models. The findings show that black carbon was key to the plume's rapid rise and persistence, challenging previous nuclear winter studies.
Researchers compared observations with model simulations, revealing gaps in smoke plume rise and duration modeling. The study found that solar heating warmed air within the plume, causing it to self-loft to nearly 23 kilometers, but observed smoke lifetime was 40% shorter than calculated models due to photochemical loss of organic carbon.
Research suggests that wildfires can effectively 'lock away' carbon for years to come through the production of pyrogenic carbon, or charcoal. This process helps compensate for carbon emissions from fires and could provide a significant buffer against future climate change.
A recent study suggests that restoring forests can stabilize carbon stocks and reduce the risk of severe wildfires. By thinning out dense vegetation and promoting biodiversity, restored forests can store more carbon than damaged ones. This approach has the potential to mitigate climate change by reducing greenhouse gas emissions.
A new study suggests that unrestrained deforestation in the Amazon region could lead to a dramatic increase in wildfire risk by 70% by the end of the century. Improving sustainable land management practices could mitigate this risk and reduce the probability of wildfires.
A recent study found that wildfires disrupt night-time pollination processes by moths, leading to a decrease in the abundance and diversity of moth species. The research also showed that the loss of host plants due to fire can lead to significant changes in the moth community.
Massive wildfires in Ontario and Manitoba produce massive amounts of smoke moving southeast into Michigan, over the Great Lakes, and into Minnesota. The smoke is carried on the jet stream, with actively burning areas outlined in red on satellite imagery.
A recent study found that old-growth forests are less likely to experience high-severity fire than young-growth forests during wildfires. This suggests that old-growth forests could be used as biodiversity refuges to buffer the effects of climate change on fire regimes in the Pacific Northwest.
The University of Texas at Arlington's team, led by Associate Professor Yan Wan, excelled in the 2019 Swarm and Search AI Challenge. They developed algorithms for multiple UAVs to map wildfires efficiently. The technology can provide real-time information and forecasts to firefighters.
Researchers found that mountain streams retain sediment for thousands of years, revealing a waterway's history. Climate-induced threats like wildfires and increased precipitation will alter the dynamics of other rivers, including the Cuyahoga River.
A collaborative team of researchers developed a framework to integrate scientific understanding of fire and its effects on ecosystems and human communities with an understanding of the human values that ultimately determine what people care about. The study emphasizes the need for community members, policy makers, and land managers wor...
A recent geography study by the University of Cincinnati found that hot temperatures are a better predictor of western wildfires than other factors. The researchers identified other risk factors, including vegetation cover and proximity to roads and population centers, which can increase the likelihood of wildfires.
A University of Montana study found that climate change limits tree regeneration following wildfires in low-elevation forests, potentially leading to abrupt forest loss. The research, published in the Proceedings of the National Academy of Sciences, examined post-fire regeneration of ponderosa pine and Douglas fir trees.
A study found that climate change and wildfires can lead to abrupt loss of low-elevation forests due to reduced tree regeneration after disturbances. Annual climate conditions now cross critical thresholds at most study sites, making it challenging for trees to regenerate.
A recent study examines California's climate over a centuries-long time period, linking long-term wind patterns to future wildfire risks. The research provides a stronger foundation for evaluating regional natural hazards in the state.
A new study finds that California's wildfire season is no longer influenced by winter precipitation, but rather by decades of fire suppression and rising temperatures due to climate change. The research team used tree rings and historical records to reconstruct fire and moisture patterns over the past 400 years.
Researchers used landscape models to examine the interaction between climate, vegetation, and prior fires on area burned. They found that the fuel limitation effect from prior fire events doesn't last long and is not as large as expected, moderating only a 7.5% reduction in cumulative area burned over the century.
A Georgia State researcher has been awarded a $1.2 million grant to develop drone technology for wildfire management, providing real-time data to aid evacuations and fire management decisions. The technology aims to help contain wildfires, predict fire spread, and support human-UAS collaboration.
A study of 2,800 hectares of mixed-conifer forest found that increasing tree density due to fire suppression leads to increased drought stress and reduced resilience to wildfires. Rising carbon dioxide levels exacerbate this effect, suggesting that denser forests will be more vulnerable to drought in the future.
A new study reveals that wildfires can affect plant growth hundreds of kilometers away from the impact zone, reducing productivity in areas far from the blaze. This finding suggests that fire pollution could pose an increasing threat to global productivity in a warming world.
Researchers created an experimental model to evaluate fire and water interactions in soil, finding low- to moderate-severity wildfires result in wetter soil. High-severity burns lead to increased surface runoff, leaving drier soils after the fire.
Researchers found that disaster media coverage can have lasting effects on children's mental health, impacting not only in school but also in response to future disasters. Teachers and parents are often the first source of support for students affected by disasters.
Researchers found that burned forest material can sequester mercury, preventing its release into waterways. Black ash from low-intensity burns contained similar amounts of mercury as unburned vegetation and white ash from high-intensity burns had higher levels in a non-reactive form.
Heavy precipitation fell in California wildfire areas, causing evacuations and flash floods, with IMERG data showing rainfall totals between 6.3-9.4 inches in north central California.
A new study links frequent, seasonal fires to the formation and expansion of ancient grasslands. The researchers used a novel approach to analyze plant biomarkers in fossil soils, revealing that fire played a crucial role in shaping the landscape.