Articles tagged with Forest Fires
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Ancient cultural burning practices by Indigenous Australians limited fuel availability and prevented high-intensity fires in southeastern Australia. The research found a 50% decrease in shrub cover due to expanded Indigenous populations and cultural burning, leading to a decline in high-intensity fires.
A new method developed by Tianlang Zhao quickly determines surface air quality during Alaska's intense wildfire season. The method combines ground monitoring data with satellite aerosol optical depth measurements to provide an observational-based estimation of PM 2.5 levels across Alaska during wildfires.
Researchers will map carbon distribution, identify high-risk areas, and inform fire suppression strategies to maximize carbon storage in the Yukon Flats National Wildlife Refuge. The project aims to address the growing threat of permafrost thaw, which could release 1,700 billion metric tons of carbon.
Two new studies find that global warming is increasing fire dynamics, particularly in Australia, South America, Western North America, and Siberia, leading to more burned areas. Climate change also increased deaths from fire-related air pollution, with a 15.8% rise in global burned area from 2003 to 2019.
Forest fires globally emitted half a billion tonnes more CO2 in the last two decades, with increased severity and extent driven by climate change. The study reveals alarming shifts in forest fire patterns, posing significant challenges for global targets to combat climate change.
This study assesses roadway damage from the 2020 wildfires in comparison to historical megafire data, highlighting the need for proactive measures to reduce future repair costs. The 2020 Labor Day wildfires caused unprecedented damage, with an estimated average repair cost of $127,783 per kilometer of impacted route.
Researchers conducted live field experiments to better understand the physics of firebrands and their impact on wildfires. They found that ember creation is highly intermittent, occurring in large bursts that can hurl fire-starting debris far from the source.
A new study found that increased public attention led to a 22% decrease in fires in the Brazilian Amazon, avoiding approximately 24.8 million tons of CO2 emissions. The heightened scrutiny prompted the government to deploy fire brigades and implement subsequent measures.
A recent study published in Perspectives in Ecology and Conservation highlights the urgent need for Brazil to reinforce protection of its forests to achieve its greenhouse gas emission reduction targets. The research emphasizes the importance of strengthening socioenvironmental actions and policies focusing on conserving or restoring f...
A new study found that well-managed electric rights-of-way can increase the diversity and abundance of pollinating insects, as well as flowering plants. By mimicking natural disturbances like wildfires, utility crews can create successional habitats that support rare plant communities.
The study assesses roadway damage from the 2020 wildfires in comparison to historical megafires in the region, finding significant increases in damage since the 2000s. The research emphasizes the critical need for targeted preventive measures and improved fire management strategies.
Researchers at Stanford University have developed a water-enhancing gel that lasts longer and is significantly more effective than existing commercial gels. The new gel creates a silica-based aerogel shield that protects structures from heat and flames, offering enhanced and long-lasting wildfire protection.
Low- and moderate-severity forest wildfires can significantly reduce the intensity of future conflagrations, with effects lasting up to 20 years in certain climates. Researchers found that these reburns have a moderating effect on forest resilience, even during extreme weather conditions.
The State of Wildfires report found that carbon emissions from wildfires globally were 16% above average, with Canada and Amazonia experiencing unusually high numbers of fires. Climate change increased the likelihood of extreme wildfires in these regions by at least three times and up to six times.
The Western Fire & Forest Resilience Collaborative will engage a research team to study wildfire challenges and solutions in Colorado, leveraging fieldwork, remote sensing, and modeling to inform fire management strategies. The funding from Lyda Hill Philanthropies will help minimize devastating fires and maintain resilient forests.
Researchers warn of unprecedented arsenic release from wildfires, potentially releasing up to half of the arsenic emitted globally each year. Contaminated mining sites exacerbate wildfire risks, with wetlands being the most concerning due to their tendency to store contaminants.
Researchers at USC developed a new method to accurately predict wildfire spread using satellite data and artificial intelligence. The model offers a potential breakthrough in wildfire management and emergency response, providing more precise and timely data for firefighters and evacuation teams battling wildfires.
A new study reveals widespread decline in Western US forest carbon storage, likely caused by drought and fire. The research provides a framework for evaluating future changes and informing management strategies to mitigate carbon loss, highlighting the need for proactive forest management practices.
Researchers found that reducing surface and ladder fuels through thinning, coupled with prescribed burning or pile burning, can significantly reduce future wildfire severity. The study's findings support the effectiveness of proactive ecological forest management in changing fire behavior and mitigating wildfire severity.
Researchers discuss ways to mitigate wildfire risks, including community preparedness programs and high-tech options for early detection. The studies also explore the impact of ultrafine particles from wildfire smoke on cloud formation and heavy rain.
A UC Riverside study found that large fires in California create a self-sustaining cycle of heat and dryness, making it easier for new fires to start. The extra heat reduces humidity, allowing conditions to become favorable for more fire.
A collaborative research study found that frequent, low-severity fires support Mexican spotted owl habitat, while high-severity fire is detrimental. This finding suggests that restoring historic fire regimes could benefit both owl conservation and forest resilience.
A new UC Riverside study found that boreal forests in the northern hemisphere are particularly vulnerable to negative effects of cleaning up aerosol pollution. Reducing levels of human-made aerosols causes an increase in wildfires, especially in northern hemisphere forests.
A recent study published in Communications: Earth & Environment found that wildfires covered 70% of California during the largest fire seasons on record. The study measured the impact of wildfire smoke on lakes and found changes in temperature, light, and oxygen levels, affecting lake productivity and health.
Wildfires in the Amazon's old-growth forests increased by 152% in 2023, primarily caused by drought, with most of them occurring in Roraima state. This surge in forest fires poses significant risks to the environment and public health.
Recent deadly wildfires in Greece and Hawaii highlighted the need for improved wildfire risk management. The authors propose a long-term strategy integrating forest land management with fire prevention and mitigation measures, including retrofitting buildings and limiting development in the wildland-urban interface.
The study, published in Geophysical Research Letters, found that active fires in west and central Africa's wet, tropical forests increased by up to 400% over 18 years, primarily caused by hot and dry conditions and human impact on forests.
In Central Italy, traditional land management practices like leaf litter raking and sheep grazing reduced wildfire risk. However, these practices have been largely forgotten due to historical classism and sexism. The research highlights the importance of remembering these ancient practices in mitigating future wildfires.
A new computer simulation model highlights the importance of cultural burning in maintaining forest ecosystem health. Researchers found that Indigenous fire stewardship was extensive across a landscape in northern California before European colonization, with an estimated 6,972 cultural ignitions occurring annually.
Researchers studied how climate change impacts boreal forests' carbon absorption after fires. They found that regrowth is influenced by the partnership between plants and soil microbes, which weakens with climate change.
A recent machine learning study has discovered a surprising link between wildfires in the western United States and hailstorms in the central US. The research, led by Jiwen Fan, used ML algorithms to analyze vast datasets spanning two decades, predicting hail storms with remarkable accuracy.
A new UM study found that fire suppression leads to severe ecological impacts and accelerates burned area growth. Suppressing low- and moderate-intensity fires results in more extreme fires under extreme conditions.
Researchers found that Indigenous communities in California were exposed to 1.7 times more wildfire smoke than expected, with the average annual exposure being a critical factor in understanding long-term health effects. The study proposes new metrics to measure cumulative exposure and duration of smoke exposure.
A new study predicts that cooler, wetter parts of the Pacific Northwest will experience increased fires due to climate change. The region's highly productive forests are vulnerable to larger and more frequent blazes, which could impact drinking water sources, timber resources, and biodiversity.
Researchers used advanced computer models to simulate the Lahaina Fire, which killed 100 people and destroyed over 2,200 structures. The simulation showed how strong winds whipped up a brushfire and drove flames through neighborhoods, helping scientists develop more detailed predictions of wildfires in populated areas.
Researchers found that more extreme and frequent droughts could lead to a nearly five-fold increase in total area burned, from 231 sq mi in 2016 to over 17,000 sq mi by 2100. Fires would also become more frequent, returning to certain forest points every five years.
New research by Oregon State University scientists reveals that forests on the west slope of Oregon's Cascade Range experienced frequent fires between 1500 and 1895. The study found that these historical fires were relatively small and had no strong link with dry air, suggesting Indigenous fire stewardship.
A new study analyzing data spanning over three decades finds a concerning trend of increasing wildfires in the eastern United States. The research highlights the need for proactive forest management and individual preparedness for people living in the region, particularly in areas with the highest risk from wildfire.
Researchers at Ohio State University are testing the use of Synthetic Aperture Radar to help with wildfire detection and improve first responders' ability to predict and respond to deadly forest fires. The new tool has potential for tracking wildfires from start to finish, monitoring soil moisture, and discerning flame-prone areas.
A recent study analyzing US wildfire events from 2014 to 2022 found that low-income and black populations receive less personnel and funding during wildfires. High-income neighborhoods, on the other hand, receive more attention and resources in disaster response and recovery efforts.
A 20-year study confirms that prescribed burning and restoration thinning can reduce wildfire risk and boost forest health. The treatments improve tree resilience to drought and bark beetles without harming biodiversity. Combining thinning with fire produces the best results, making forests more resilient to climate change.
Research finds national parks and protected areas in Thailand are more prone to forest fires when located far from indigenous communities. Collaborative work with local communities reduces forest fires and air pollution, highlighting the importance of indigenous practices.
Researchers analyzed satellite data on medium-sized and large wildfires in Utah from 1984 to 2022, finding that medium-sized fires had significant impacts despite smaller size. The study suggests that looking at these 'hidden' fires can help inform decisions on prescribed burns and predict future fire behavior
Recent US legislation aims to increase fire management and tree planting to reduce large destructive fires and promote carbon sequestration. Fuel reduction activities are projected to remove 194-288 million metric tons of carbon from western forests over the next decade.
Researchers investigated the effects of megafires on California's wildlife habitat, analyzing over 600 species. They found that high-severity fires impacted 100 species, with 16 considered conservation concern, yet some species may find refuge in unaffected habitats.
Prescribed fire can improve forest health and reduce catastrophic wildfires, but barriers hinder its use. Four strategies can overcome these obstacles: fostering a supportive culture, providing dedicated funding, building capacity and cooperation, and implementing monitoring and adaptive management.
A new study by Columbia University and Stanford University finds that low-intensity fires can dramatically reduce the risk of devastating wildfires in California forests. The analysis reveals a 60% reduction in risk after a low-intensity fire burns, with effects lasting at least six years.
A new study found that wildfires and drought have led to a 10% reduction in the value of private timberland in three Pacific states over the past two decades. Climate change is attributed as the primary cause of this damage, with large wildfires causing an additional 8.7% loss.
Research reveals that smoke from individual extreme forest fires can lead to global impacts, influencing the energy balance of the atmosphere and global climate. The study found a significant temperature increase in upper air layers and weakening of lower stratospheric circulation.
Researchers at Stanford and Columbia universities found that low-intensity fires can dramatically reduce the risk of devastating wildfires for years at a time. By analyzing satellite data from over 100,000 square kilometers of California forests, the team showed that controlled burning can significantly decrease the risk of high-intens...
Research reveals that lightning ignitions account for 77% of burned areas in intact extratropical forests, which store vast quantities of carbon. Climate change is projected to increase lightning frequency, posing a significant threat to these forests and the planet's carbon storage.
Climate change is increasing wildfire risk, with fires in the Western US doubling in frequency between 1984 and 2015. Banana trees, when irrigated by recycled water, can produce high-value crops and act as a multifunctional fire buffer.
A new study using satellite imagery found that fires in boreal forests shift from coniferous to deciduous trees, but these changes are reversible over time. The study's findings suggest that continued climate warming and increased wildfire activity could lead to pronounced changes in forest composition.
Researchers found that subalpine forests in the Northern Rockies consistently recovered from wildfires over 4,800 years, with lake sediment cores providing a detailed record of past ecosystem responses. The study suggests that these forests are resilient to fire now, but future climate change may alter this resilience.
A recent study using SENTINEL-2 satellite images estimated burned areas with 96% accuracy, revealing a much larger area affected by wildfires than previously thought. This higher precision will help improve estimates of greenhouse gas emissions and inform fire management decisions.
Uncontrolled wildfires are threatening environmental progress in Brazilian Amazonia, a critical carbon sink. Deforestation rates have fallen, but fire counts remain high, driven by hotter and drier climate conditions.
Research from Colorado State University shows wildfire smoke can attach to home surfaces like carpet and drapes, extending exposure and potentially causing health problems. Simple surface cleaning, such as vacuuming or mopping, can reduce exposure and limit risk.
A new study by UCLA climate scientist Daniel Swain finds that climate change is limiting the use of prescribed fires to prevent wildfires. The research projects a 17% reduction in favorable days across the Western US, with most reductions coming in spring and summer.
A study suggests that dispersal plays a major role in microbial succession after a fire. Researchers found that the emerging microbial communities in the soil surface changed with the seasons and plant reappearance, driven by dispersal. Dispersal from air contributed significantly to microbes entering the soil surface.
Researchers at the University of California, Irvine have found that decades-old remains of large trees are a major contributor to fire severity in California's Sierra Nevada mountains. This discovery could help improve the state's wildfire management efforts through targeted fuel treatments and prescribed burns.