Articles tagged with Fire
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A study published in Ecosphere shows a steady increase in non-native plant cover since 2014, with rapid regrowth of invasive species after the 2018 Woolsey Fire. The region's unique ecosystem is at high risk of losing native plants, increasing fire hazard and biodiversity loss.
Melinda Adams' research highlights the benefits of pyromantic or 'good fire' in reducing environmental dread, fostering control, and promoting carbon storage. Her work, co-authored with Erica Tom and Ron W. Goode, aims to educate students and community members about Indigenous land stewardship and climate solutions.
A study published in Ecosphere found that national park attendance numbers remained steady despite the presence of high levels of wildfire smoke. The researchers used breakpoint modeling to analyze data from 1980-2019 and found that even dramatic amounts of smoke did not deter visitors.
A team of researchers created a deep learning system capable of detecting natural disasters using images from Twitter and Flickr. The system, trained on over 1.7 million photographs, was able to accurately identify incidents such as floods, tornadoes, and forest fires.
Researchers found that controlled burns in key areas of northern California, western Oregon, and eastern Washington could drastically reduce wildfire smoke exposure throughout the entire western U.S. This is due to prevailing winds carrying smoke across the continent and abundant dense vegetation fueling smokey fires.
Research reveals that prescribed burns create favorable conditions for stinknet to spread, outcompeting native plants and reducing soil health. Targeted treatments after burns can help mitigate this issue.
Researchers have found sedimentary archives in sand dunes that can reconstruct reliable, multi-millennial fire histories. The discovery aims to expand scientific understanding of fire regimes around the world and uncover the role of humans on fire history.
Researchers reconstruct Holocene fire records using sand dune foot-slope deposits, providing a new perspective on fire regimes and human influence. The study's findings suggest that sand dunes can serve as repositories of fire history, aiding in the expansion of scientific understanding of fire histories around the world.
Fungal spores found in dung indicate large animals went extinct in two waves in the Colombian Andes, with major impacts on ecosystems. The study reveals that megafauna existed for thousands of years before disappearing and reappearing again, highlighting the sensitivity of habitats to local herbivore declines.
A new detection technique reveals that megafires emit significantly more methane than previously thought, posing challenges to California's climate goals. Researchers used remote sensing to measure methane emissions from wildfires, finding nearly 20 gigagrams of methane emitted by a single fire.
A study found a significant association between heating complaints and structural fires in NYC, with varying rates across community districts. The results highlighted inequities in safe heating, particularly among Black and Latinx communities.
Researchers discovered that certain microorganisms dominate burned soil after a wildfire, with some species increasing in abundance and others consuming charcoal. This finding could help revive megafire dead zones and provide insights into the human microbiome's response to stress.
A new analysis found that human ignitions started 76% of the wildfires that destroyed structures in Western states, leading to increased structure losses. The study suggests that policymakers can lessen the risks of wildfire damage by addressing human-related ignitions and promoting fire-resistant building materials.
Researchers found that wildfire exposure led to difficulty in sensory interference processing and increased frontal cortex activity, similar to PTSD symptoms. Cognitive deficits persisted 6-12 months post-wildfire, highlighting the need for targeted interventions to address climate trauma.
A study published in Environmental Research Letters finds that human-ignited fires are responsible for over 67% of small smoke particles called PM2.5 in the US, leading to 20,000 premature deaths annually. The research highlights the need for ignition-focused management plans to reduce human-ignited fires and minimize health impacts.
The UCF-developed battery uses saltwater as an electrolyte, eliminating volatile solvents and overcoming limitations of previous aqueous batteries. The novel design allows for fast charging in just three minutes and increased stability, making it a safer and more efficient alternative to traditional lithium-ion batteries.
A government policy that pushed back the sowing of rice in northwest India led to a delay in harvests and agricultural burning, exacerbating air pollution. Without this delay, cities like New Delhi would have seen an average of 11-21% less smoke-related air pollution between 2008 and 2019.
A national study found that Americans are moving to regions with the greatest risk of wildfires and significant summer heat, despite climate change projections. The top migration destinations were cities in the Pacific Northwest, parts of the Southwest, Texas, Florida, and the Southeast, which already face significant wildfire risks.
The NSF is seeking proposals to utilize the ISS National Laboratory for fundamental research in fluid dynamics, thermal transport, and combustion. Researchers aim to advance knowledge that benefits life on Earth, particularly in predicting and preventing catastrophic mudslides after wildfires.
Researchers have found that cyclones and fires can interact in devastating ways, causing more damage than either event alone. The study suggests that high-intensity bushfires could be followed by cyclones, encroaching on previously low-risk areas and extending damage zones.
UCF researchers are developing a wearable, wireless health monitor to track physiological response to heat stress in firefighters. The device aims to identify correlations between heat stress and skin thermal activity for the first time, providing insight into the link between heat stress and serious medical issues.
Recent research on Regime I fires, also known as window-ejected fire plumes, has focused on understanding the physical processes and mechanisms of these events. The study's authors review various external boundary and ambient conditions that affect window-ejected fire plume dynamics and propose further areas of investigation.
A team of CSU researchers has designed a model that can predict which buildings will survive a wildfire, allowing for more effective fire mitigation strategies. By analyzing community networks and incorporating graph theory, the model achieves accuracy rates of up to 86% in predicting building survival.
Research finds LA mountain lions are avoiding burned areas but crossing roads and traveling longer distances to find resources. The population is increasingly at risk due to habitat loss and human-wildlife conflict.
A new model developed by US Department of Agriculture's Agricultural Research Service and the University of Montana forecasts which areas in the Great Basin have the highest probability of a large rangeland fire. The model combines measures of accumulated annual and perennial grass vegetation with recent weather and climate data.
Research from North Carolina State University and the International Research Laboratory Takuvik found that wildfire smoke in Siberia amplified a phytoplankton bloom in the Arctic Ocean. The bloom was larger than normal, requiring a substantial influx of new nitrogen supply to occur.
A NASA initiative studies wildfire-induced air pollution by measuring atmospheric CO and O3 levels using airborne observations. The study found that CO levels increased in the plume as it was transported away from the fire site, while plume age was associated with distance in both vertical and horizontal directions.
Forests face risks from climate change in three dimensions: carbon storage, biodiversity, and forest loss from disturbances. The study found higher risks in southern boreal forests and drier regions of the Amazon and African tropics.
A study found that Australia's 'Black Summer' megafires increased the load of fire-derived pollutants in estuaries, posing a threat to biodiversity and ecosystem health. Researchers recommend prioritizing riverside vegetation for protection and incorporating bushfires into catchment management plans.
A comprehensive study reveals that nitrogen-fixers are most diverse in arid regions of the US, contrary to expectations. Plants have evolved creative ways to acquire nitrogen, and their diversity increases in these environments due to adaptations such as thicker cuticles.
A new study highlights five critical challenges in wildfire research, including promoting coordinated research and drawing on diverse sources of knowledge. The authors emphasize the need for a more proactive fire research agenda to create safe communities and ecosystems.
A new study suggests that investing $16 billion a year can restore 65% of fire-impacted species habitat and sequester up to 291 megatons of carbon dioxide. The research also highlights the need for urgent removal of invasive species, replanting, and stopping native forest logging.
Researchers developed a Flashover Prediction Neural Network (FlashNet) model to forecast deadly fire events, beating other AI-based tools with up to 92.1% accuracy across various building floorplans. The model's performance improved when given real-world data, highlighting its potential for saving firefighter lives.
A new study from the University of Georgia found that counties with moderate-to-high wildfire risk are more likely to have higher poverty rates. The researchers identified 14 states in the lower 48 with the highest wildfire risk, including Arizona, California, and Texas.
Climate change is intensifying Western US wildfire activity, resulting in taller smoke plumes and more aerosols injected into the atmosphere. The study models 4.6 million smoke plumes and finds that maximum plume height increased by an average of 320 ft per year in four regions, with some areas experiencing a 750 ft per year increase.
A new methodology predicts soil recovery after wildfires by analyzing the impact of microbes and nutrients on soil regeneration. The study found that including uncommon soil microbiota was critical to predicting water quality and terrestrial ecosystem recovery.
A new resilience sensing system can identify areas in danger of collapse and measure the success of conservation efforts. Global average resilience has declined over the last 20 years, with regions such as the Amazon rainforest showing signs of loss of resilience.
Researchers found that arctic shrub growth is limited by seed dispersal and fire, not just environmental suitability. The study used high-resolution satellite imagery to estimate shrub expansion in the Arctic region, revealing a discrepancy with previous models.
Scientists argue that system thinking can better understand the world's rapidly changing dynamics, considering both social and ecological factors. The article highlights the importance of this approach in addressing climate change-induced natural disasters, such as increased frequency and danger of wildfires.
Research led by Penn State found that low-severity fire treatments reduced the worst effects of the Dixie Fire. The study also showed that areas with a history of high-severity fires were more likely to burn at high severity again, highlighting the importance of ecological memory and legacy effects of past fires.
New research highlights how climate change enhances wildfire risk globally, but human actions and policies can mitigate regional impacts. The study assesses 500 previous papers and examines future fire weather trends to provide insight into the success or failure of climate policies.
Researchers examine historical data and weather patterns to understand west-side wildfires' timing, size, and causes. They find that severe fires are normal for the region when looking at longer time scales, and conventional fire management tools may be less effective due to extreme winds.
A Yale University team predicts fire risks can shift from low to catastrophic in a matter of hours, highlighting the need for more accurate models to understand global fire regimes. Climate change exacerbates conditions that fuel intense fires, making land management and prediction challenging.
Cattle grazing with protein feed supplements during the fall and early winter can significantly reduce standing fine-fuel biomass by over 50% in cheatgrass-dominated pastures. This reduces fire risk by creating space for native grasses to grow, benefiting both ecosystem health and cattle ranchers.
Researchers found that certain characteristics of refugia led to more tree regeneration, with taller trees and mountain hemlock species showing higher seed dispersal. The study suggests that natural regeneration is possible in some areas, making replanting efforts unnecessary and potentially harmful.
Researchers found Madagascar's tree losses occurred internally in forests without landscape-scale fires, suggesting medium to large fires did not cause high rates of tree loss. Fire is declining across tropical grassy ecosystems globally, including on Madagascar, with major implications for ecosystems.
A new study finds that climate change is projected to increase the risks of tree death in US forests by 4-14 times by 2099, depending on carbon emissions scenarios. Human actions to tackle climate change can significantly reduce these risks.
Researchers have successfully stored liquid fuels like ethanol in polymeric gels, drastically reducing evaporation rates and flammable gas mixtures. The development of this method aims to create safer work environments in industries that use liquid fuels.
A new study from McGill University finds that people living near regions prone to wildfires may have a higher incidence of lung cancer and brain tumors. Exposure to carcinogenic wildfire pollutants on a chronic basis increases the risk of certain cancers, according to researchers.
A study found that protected conservation areas in Madagascar experienced unprecedented spikes in fires during the COVID-19 pandemic, particularly when on-site management was suspended. The team suggests that governments should consider keeping some staff in protected areas to mitigate this impact.
The study found that fires in 2020 followed an accelerating trend of increased burn area, severity, size, and costs to society and the economy. Human-caused fires accounted for nearly 60% of fires, but lightning-sparked fires burned more than five times the area burned by human-caused fires.
A recent study suggests that tree density in the Cerrado biome has been controlled mainly by the length of the dry season over the past 45,000 years. The research found a link between changes in the dry season and variations in Earth's axial tilt, which may lead to similar trends in the late 21st century.
Experts propose a consensus approach to address the impact of forest fires on human health. The method emphasizes controlled burns as a tool to reduce explosive wildfires and improve forest health. The approach also prioritizes inclusivity in decision-making, particularly for populations disproportionately affected by smoke exposure.
A new study published by the Union of Concerned Scientists warns that wildfires in US and Canadian boreal forests between now and 2050 could release about 12 gigatons of net carbon emissions, equivalent to 3% of the remaining global carbon budget. This could jeopardize nations' ability to limit warming in line with the Paris Agreement.
A new virtual reality (VR) experience is educating children aged 10-12 about bushfires, helping them learn how to be safer in emergencies. The project demonstrates the effectiveness of immersive VR experiences in delivering positive learning outcomes for primary children.
A new paper by UBC researchers suggests reviving cultural burning and promoting Indigenous-led fire stewardship to achieve multiple objectives, including reducing wildfire risk and enhancing biodiversity. However, barriers such as lack of understanding and funding limitations hinder the implementation of these practices.
Research finds fungi and bacteria can thrive in post-megafire soils, with certain microbes increasing in abundance. These microbial 'cousins' are genetically related and share adaptive traits to respond to fire, improving prediction of their responses.
A study by Portland State University researchers found that extreme winds were the primary driver of the devastating 2020 Oregon megafires, but topography and vegetation structure also significantly influenced burn severity. Younger trees and low canopy height were particularly susceptible to high mortality rates.
A $150,000 grant from the NV Energy Foundation will support DRI's development of a Weather and Research Forecast model to simulate weather, fire, and smoke for firefighting operations. The tool will provide critical air quality forecasts and risk assessment for specific locations.
A new study found that non-medical first responders, such as police and fire departments, are associated with higher cardiac arrest survival rates. They initiated CPR in 31.8% of incidents and AED use in 6.1% of cases, leading to significantly improved chances of survival and hospital discharge.