Articles tagged with Fire
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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.
A new review article explores how fire histories affect animal movement patterns and the distribution of species. It highlights the consequences of altered fire regimes and habitat fragmentation on animal populations, emphasizing the need for interdisciplinary research to better understand these complex interactions.
Researchers developed a new foldable drone that can squeeze itself through narrow passages and navigate tight spaces. The drone's mobile arms can fold around the main frame, allowing it to maintain stable flight while adapting to different configurations.
A new noninvasive technology detects nerve cell firing based on changes in shape, allowing for quantitative monitoring of visual function at the cellular level. This technique could be used to observe nerve activity in light-accessible parts of the body, such as the eye.
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 a combination of climate and weather factors, including a pyro-cumulonimbus cloud, led to the formation of a firenado in the Carr Fire. The vortex was spinning with the power of a class three tornado and contributed to the fire's rapid spread.
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 Rutgers University study found a 600% increase in forest fires in protected areas and a 52% increase in deforestation probability following guerrilla demobilization. The researchers recommend real-time monitoring and payment programs to protect forests.
Researchers found that prescribed burning can produce positive outcomes when carried out on a sensible rotation, including reduced fire fuel loads and increased carbon accumulation. The study used stratigraphical techniques to analyze data from long-term ecological experiments at Moor House National Nature Reserve.
Research reveals that eastern fence lizards adapt their behavioral and physical traits to avoid being attacked by fire ants. As fire ants expand their range northward, lizards switch from relying on camouflage to twitching and fleeing to remove the ants, leading to significant changes in limb length and stress physiology.
A new study from Stanford University suggests that climate change is doubling the odds of regions experiencing both warm and dry conditions in a given year. This trend poses significant challenges for agriculture, as hot-dry conditions can lead to reduced crop yields and exacerbate fire risk.
Researchers used place cells to determine a rat's location and predicted its next move. The findings provide insight into how rats think about space and solve spatial memory tasks.
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.
Weekly air sample analysis in Singapore revealed that peat burning was the primary source of smoke during Indonesian fires in 2015. The study suggests that around 85% of smoke reaching Singapore originated from peat, highlighting the need to protect peat from wildfires.
Forests in the Pacific Northwest are less vulnerable to drought and fire due to climate conditions. Modeling suggests water-limited forests in the Rockies will be most affected by future drought-related mortality.
A study published in Neuron demonstrates that neurons with the same projection target are more likely to connect with each other, despite being neighbors. This 'exclusion' principle of connectivity highlights a new rule of connectivity in the neocortex.
Researchers at CU Boulder discovered statistical rules governing fire ant colonies' flexibility, which may help craft smart polymers and swarming robots. The findings could also aid in understanding dynamic networks in nature, including human cells.
Researchers found that Douglas-fir density was high after 20 years in severely burned areas, unaffected by management practices. Forest managers should tailor post-fire management to specific objectives and landscape context to maximize effectiveness.
A $1.5 million FEMA award will fund a first-of-its-kind study on the health effects of wildland firefighter smoke exposure. The research aims to quantify pulmonary and cardiovascular health consequences for firefighters exposed to toxic hazards in wildland fires.
Historically, 4-12% of western US land burned annually, while current trends underestimate future risks. Climate-driven drying and excess vegetation have led to low wildfire rates, shifting assessment towards inevitable future fires. The authors highlight the need for more widespread effective management strategies.
Researchers at ICTA-UAB are developing a participative prevention and fire fighting strategy for the Montseny Biosphere Reserve. The project aims to analyze types of fires, establish strategic management points and foster institutional coordination of climate change mitigation and adaptation policies.
Research suggests that Indigenous fire practices are protecting plant biodiversity in the Gibson Desert by preventing ecosystem transformations, retaining critical species. The traditional burning practices of the Pintupi people have helped conserve unique flora and prevent the destruction of desert myrtle shrubs.
A new study finds that preindustrial fire emissions were stronger than previously believed, leading to an underestimated cooling effect on past climate. Fire-induced aerosol particles increased cloud brightness and reflected sunlight, offsetting warming from greenhouse gases.
A study by University of Barcelona researchers finds that global warming will increase burned areas due to fires in Mediterranean Europe, with a 40% rise at 1.5°C warming and 100% at 3°C. This calls for rethinking current management strategies and developing climate-fire models to prevent and reduce fire impact.
Researchers at Universities of Bonn and Tübingen demonstrate that human neurons fire mainly for specific quantities, such as three or four points. The study also shows how we learn to handle number symbols in comparison to quantities, with digit neurons responding differently from quantity neurons.
A three-year project is using unmanned aircraft to gather air quality information during prescribed burns in the Kansas Flint Hills. The data helps NASA verify satellite products and facilitate collaboration between environmental agencies to improve smoke management plans.
A new study from FSU researchers indicates that common satellite imaging technologies have underestimated the number of fires in Florida. Strategically prescribed burns are proving effective against wildfires, while fire experts' reliance on faulty data may be flawed. The study found that only 25% of burned area is detected by satellites.
A study by Rush University Medical Center found that Chicago news media reported 59% of child traffic crash deaths and 38% of fire-related deaths, but not a single case of sudden unexpected infant death. This lack of reporting contributes to parents' unawareness of the risks involved, leading to unsafe sleep environments.
The USDA Forest Service introduces the Hot-Dry-Windy Index (HDW) to predict wildland fire danger, leveraging temperature, moisture, and wind variables. Researchers tested HDW against existing indexes and found promising results, with potential applications worldwide.
A new virus has been discovered that may help combat invasive fire ants by reducing their foraging activity and altering their dietary preferences. However, this could also impact the efficacy of conventional chemical control methods.
New research reveals that low-severity burns weaken soil structure, increasing risk of erosion, while also releasing organic carbon into the atmosphere, contributing to climate change. Soils in burned areas show deteriorating physical properties over weeks and months.
A recent study found that invasive pine trees significantly increased the severity of the 2017 Knysna wildfires by trebling fuel loads. The study also showed that climate change exacerbated the fire's impact due to a prolonged drought period, and warned that similar conditions will occur again in the future.
Researchers at UCSB and NCAR find that climate change is affecting the connection between El Niño and wildfires, leading to more extreme and frequent fires. As the Earth warms, El Niño events are expected to have a larger impact on fire risk in California and other fire-prone regions.
A new UNLV study reveals that real estate prices for homes in wildfire-prone areas fall initially after a blaze, but rebound within one to two years. The phenomenon may pose a curse, as homebuyers prioritize environmental amenities over fire risk.
56 active wildfires in British Columbia have burned over 1.5 million acres, with hot and dry conditions creating a high risk of rapid fire spread.
Wildfires in Africa, driven by agricultural practices, have intensified due to low humidity, high winds, and extreme temperatures. In contrast, South American fires, particularly in Chile, are exacerbated by a mega drought and flammable tree plantations.
A Montana State University-led team discovered that low humidity, high winds, and extreme temperatures contribute to Chile's massive fires. The researchers found that Chile replaced native forests with more flammable tree plantations, which facilitated the spread of fires.
A review of research on summer weather stalling highlights the impact of Arctic warming on air circulation patterns, leading to more frequent extreme weather events. The study suggests that prolonged sunny episodes can turn into heat waves and heavy rainfall, posing a major climate risk.
A recent study found that summer precipitation declines contribute to increased wildfire activity in the western United States, particularly on wetting rain days. The research suggests that precipitation may drive wildfire activity through its effect on air moisture, with decreased rainfall forecasted to exacerbate future wildfires.
The West Coast of the United States is experiencing a massive wildfire season with over 1.9 million acres ablaze. The situation is exacerbated by warmer temperatures and dry conditions, leading to increased lightning strikes and potential for further blazes.
A new study found that frequent fires in eastern US forests make droughts harder for young trees to survive, even in wet areas. The research shows that fire can promote warmer, drier conditions and reduce nitrogen availability, leading to increased drought stress.
A new study suggests that historic fires may have had a significant cooling effect on the planet, contrary to previously believed levels of aerosol pollution. The research, led by the University of Leeds, found that fire activity may have been as common before 1750 as in modern times.
Five large fires in Oregon's southwest corner are burning out of control due to a region-wide lightning storm on July 15. The Garner Complex and Taylor Creek Fire have combined to become the largest fire, with the Taylor Creek Fire growing to 41,103 acres.
The Mendocino Complex has become the largest fire in California history, burning over 290,000 acres and forcing nearly 4,000 firefighters to battle the inferno. The complex consists of two separate fires, River and Ranch Fires, which have destroyed 75 residences and 68 structures.
Researchers found that locusts use an OR-of-ANDs logical operation to compensate for variability in brain activity when recognizing smells. This allows the locusts to generalize and recognize the target odorant despite changes in context.
A study of firefighters reveals how groups take leaps of faith through supporting and sustaining dynamics. This study breaks new ground in understanding trust-related judgments, shedding light on the role of knowledge and faith in building trust.
The Carr fire has consumed 110,154 acres, destroying 161 residences and 12 outbuildings. Weather conditions and terrain make firefighting efforts challenging, with over 2,500 structures still at risk.
A study published by the USDA Forest Service found that tweets from California during the 2015 wildfire season could predict air quality impacts from smoke. The research combined ground-based monitoring with a topic model mapping citizens' tweets to improve models for predicting smoke dispersion.
Researchers have discovered that using information to extract work on a quantum scale is possible, but it comes with a catch: some information may be lost in the process. Quantum backaction allows researchers to measure particles without fully collapsing their superposition states, resulting in negative information.
A new NASA study reveals that megafires in Canada's Northwest Territories released half as much carbon back into the atmosphere as all the plants, shrubs and trees store in an entire year. The Arctic is warming faster than any other region on Earth, leading to more frequent and intense large fires.
A recent study published in Ecosphere reveals that mixed-severity wildfires actually produce more benefits than costs to Spotted Owl populations. The research analyzed 21 scientific studies and suggests that management strategies prioritizing fuel-reduction logging are outdated.
A new study led by Southern Methodist University archaeologist Christopher I. Roos reveals that Native American communities actively managed North American prairies for centuries, using fire to manipulate bison herds and amplify the effects of climate on prairie fire patterns.
A study analyzed prairie fire charcoal deposits to examine fire activity over the last millennium in Montana, revealing high activity during 1100-1650 CE and a strong link between humans and climate on fire regimes. Climate records showed that more than half of the fire deposits coincided with modest or short wet periods.
A four-engine plane carrying scientists and equipment will fly into wildfire smoke to measure its chemistry, aiming for a comprehensive understanding of the effects on air quality, health, and climate. The WE-CAN project will analyze 15-20 smoke-observation flights in late July and August.
Researchers at Colorado State University have developed a new model that quantifies the vulnerability of communities to fire spread. The AGNI-NAR model assesses the risk of fires spreading to homes and groups of homes, providing practical guidance for urban planners and emergency managers.
The study found that wildfire had a strong effect on the density of many bird species, with some reaching maximum densities after high-severity fires. The researchers also discovered complex patterns in species' responses to fire severity and time since burning, highlighting the dynamic nature of avian communities after fires.
A multidisciplinary team at UC Santa Barbara found that immediate responses to disasters like wildfires and floods can have unintended consequences. By prioritizing long-term planning and adaptation strategies, decisionmakers can mitigate the risks of climate change-mediated disasters.
A new study in Respirology reveals that Southeast Asia's annual haze is associated with increased hospital admissions for respiratory problems. Respiratory admissions at Universiti Kebangsaan Malaysia Medical Centre were significantly higher during haze periods, with 27.6 cases per week versus 15.7 cases per week.
A Rutgers-led international team of scientists has verified a 53-year-old theory on ferroelectric metals, creating a new class of two-dimensional artificial materials that exhibit ferroelectric-like properties at room temperature. These findings have the potential to spawn a new generation of multi-functional devices and applications.
A Baltimore campaign found that automated phone calls were more effective than Facebook ads in encouraging residents to request free smoke alarm installations. The campaign, which ran in 2014, reached over 90,000 households via landline and resulted in 458 requests for smoke alarms, compared to just 25 from Facebook ads.