Articles tagged with Forest Fires
A new study reveals the extreme vulnerability of young volcanic soils to wildfires in the Arequipa shrublands of Peru. The research found that vegetation and soil combustion, combined with post-fire erosion, have caused a severe loss of soil organic carbon, hindering ecosystem recovery.
A CSU study reveals trees are contracting in response to climate change, failing to regenerate in hottest areas and not expanding into cooler climates. Human-assisted tree migration is proposed as a solution to help forests adapt to climate change.
Research published in Nature Communications reveals that fewer forest fires are burning today than in the past, despite recent record-breaking fire years. This 'fire deficit' allows fuel to build up over time, creating conditions for more severe fires. The study highlights the importance of beneficial management fires on the landscape.
Human-caused fires in the Western US are growing faster than lightning fires due to climate-driven changes in dryness and heat. The study found that anthropogenic greenhouse gas emissions account for 81% of the increases in flammable days, highlighting the need for more accurate fire risk models.
A new study found that 34% of the Arctic-boreal zone is now a source of carbon, with fires and microbial activity contributing to emissions. The research provides a comprehensive assessment of carbon fluxes in the region, highlighting the importance of monitoring these processes.
New research from Colorado State University finds that wildfire smoke has a modest impact on long-term solar power generation activity in the US. The study, published in Nature Communications, shows that power generated from photovoltaics remained relatively stable even in extreme fire seasons, with losses averaging around 5%.
Early online research reveals associations between snowmelt timing, wildfires in Alaska, and rapidly intensifying tropical cyclones. The impact of climate patterns on extreme weather events is a growing concern.
A study found a strong link between woody cover and large wildfire occurrence in the eastern US, with a 37% increase in woody vegetation over the last 30 years. In some regions, such as eastern Texas and the Appalachian Mountains, each 1% increase in woody cover led to a 3.9% increase in wildfire risk.
A study by University of California - Davis researchers found that well-timed tree planting can boost forest recovery by up to 200% in hotter, drier areas. However, competition from shrubs can hinder this process, and the outcome depends on climate, soil, and vegetation conditions.
Researchers found a link between El Niño events and increased fire risk in the Amazon region, particularly where groundwater storage is compromised. The study highlights the critical role of groundwater in sustaining vegetation during droughts, emphasizing the need for prevention efforts during extreme climatic conditions.
Research reveals that US cities in Western states had the highest average smoke levels over five years, but 2023 saw metropolitan areas like Baltimore flooded with unhealthy smoke. The algorithm helped identify cities with significant air pollution from wildfires, including Sacramento, Medford, and Bend.
A new study finds that California's wildfire response is biased towards wealthier communities, leaving marginalized populations without access to necessary resources. The analysis of over 500 wildfire incidents revealed a significant disparity in resource allocation based on socio-demographic factors such as race and economic status.
A new study from Tel Aviv University uses smartphone data to predict wildfire risk, overcoming individual device errors by averaging large amounts of public data. The method provides valuable insights into wildfire evaluation, especially in remote areas lacking traditional weather stations.
A study by the University of Bonn and Universidade Federal de Minas Gerais shows that forest protection measures significantly reduce particulate matter in the air, leading to a decrease in hospital stays and deaths due to respiratory diseases. Protective measures are estimated to save around 680 human lives per year.
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.
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.
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.
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.