Articles tagged with Forest Fires
The Rim Fire study examines the impact of drought and fire suppression on large fires, contrasting with a nearby National Park's natural fire regime. This natural experiment provides insights into the effects of megafires on watersheds under different management regimes.
Heavy smoke from forest fires in the Northern Territories has triggered a high health risk warning for Yellowknife and surrounding areas. The smoke contains harmful particles and chemicals, posing risks to vulnerable populations such as those with cardiovascular or respiratory conditions.
Severe forest fires are burning across the region, with 160 wildfires currently active, and a total of 855,000 hectares burned so far this year. The area burned has grown eight-fold compared to the 10-year average, posing high fire danger in the region.
A study found that logging, partial destruction by burning, and fragmentation result in the loss of nearly 54 million tons of carbon annually, equivalent to up to 40% of total deforestation. This degradation has a severe impact on the forest, with enormous quantities of stored carbon being lost into the atmosphere.
A Dartmouth-led study reveals that climate change and Northern Hemisphere forest fires combined to drive large-scale surface melting of the Greenland ice sheet in 1889 and 2012. The research suggests nearly annual widespread melting of the ice sheet's surface by 2100, with a positive feedback mechanism set in motion.
The Signal Fire in New Mexico is a rapidly spreading wildfire with 507 firefighters and resources from NASA. The fire's cause is believed to be human, with evacuations ordered for residents near the affected area.
A recent study found that severe droughts and repeated fires in the Amazon lead to high tree mortality rates, with 60% of trees dying in a single experiment. The researchers warn that climate change will exacerbate this issue, making it essential to implement policies and programs to control forest fires and prevent deforestation.
A study of forest changes reveals a 2.4 times increase in tree density since 1929, with fewer pine trees and more fir and cedar, leading to reduced biodiversity and increased susceptibility to severe fires. The findings highlight the importance of restoring fire resilience and improving biodiversity in forests.
The Rim Fire has consumed over 246,000 acres of Yosemite Forest land, prompting concerns about intensifying fire activity and potential resumption of gusty winds. Personnel have been working tirelessly to bring the blaze under control, with six persons injured during the operation.
The Monitoring Trends in Burn Severity project uses Landsat data to quantify large fires nationwide, providing long-term burn severity maps. Researchers investigate fire behavior changes over years using the valuable data, revealing increasing fire activity in the western US.
The Rim Fire in California has grown to over 106,000 acres, largely due to dry conditions and challenging terrain. Despite efforts of over 2,000 firefighters, the fire remains only 2% contained.
Landsat satellites analyze post-fire images to estimate burn severity, helping crews focus restoration efforts on high-risk areas. By analyzing maps created with Landsat data, teams can identify areas at risk of post-fire flooding and implement restoration projects to mitigate damage.
A persistent high-pressure weather pattern contributed to the heat wave, which saw temperatures reach 32° Celsius in northern Siberia. The fires are burning in an unusual area, significantly north of the typical summer wildfire zone.
Forest fires are burning north and east of Russia's Irkutsk Oblast in southeastern Siberia, affecting recreational areas and the nearby town of Mirny, home to the world's largest diamond mine. The MODIS instrument detected heat from various wildfires using its infrared capabilities.
The Rancho Fire started on July 19, 2013, and has burned 722 acres of land. Containment efforts involve 337 resources, including 14 crews, 10 engines, and 2 helicopters.
The Quebec forest fires have caused significant disruptions, with over 10% of Quebecers losing electricity due to power line failures triggered by smoke from the fires. More than 280,000 hectares of forested area have been scorched, with three major forest fires being monitored.
A series of forest fires near James Bay, Quebec have consumed over 617,000 acres of land, causing air quality problems for Canadians and Americans. The smoke has been pushed by winds to southern Ontario and the northeastern US state of Maine.
Predicted climate changes may hinder conifer regeneration after major forest fires on dry, low-elevation sites, leading to conversion of forests to grass or shrub lands.
Understory fires in Amazon rainforest cause significant damage, with climate conditions playing a crucial role in determining fire risk. The study reveals that these hidden fires burn at a much slower rate and can destroy up to 50% of the affected area's trees.
The USGS has taken operational control of Landsat 8, the latest in a series of remote-sensing satellites that have been monitoring Earth's landscape since 1972. With this shift, at least 400 scenes will be collected daily to be processed and archived, supporting scientific research and decision-making on environmental issues.
New York University physicists have found that energy is released and dispersed in magnetic materials through a process akin to forest fires. By manipulating magnetic fields, they were able to control the speed of this process and understand how energy is sustained and spreads.
Researchers at the Salk Institute discovered that burning plants create chemical messages in soil that stimulate dormant seeds to grow, explaining a fundamental ecological mystery. The findings may aid in developing plant varieties that help restore ecosystems.
A recent study published in PLOS ONE found that bats are neutral or positively impacted by moderate to high-severity forest fires. The research suggests that fires may create a habitat structure beneficial for various bat species, with some even preferring burned areas for foraging.
Researchers used dispensary records to measure the effect of forest fires on people with chronic lung diseases. The study found that even small increases in smoke were associated with higher salbutamol dispensations, highlighting the impact of pollution on public health.
Research suggests that active management of forest lands in high-fire-risk areas can improve forest health and reduce the threat to the northern spotted owl. The study found that over a long-term period, managing sites with high fire hazard would be more favorable for spotted owl conservation.
Researchers found that acorns inside leaf litter or soil are protected from fire, while those on top of the litter are vulnerable to low-intensity surface fires. The study suggests optimal timing and conditions for prescribed burning to promote oak regeneration without harming acorns.
The Waldo Canyon Fire has burned over 15,517 acres near Colorado Springs, forcing evacuations of at least 32,000 people. NASA satellites continue to provide coverage of the fire, which is currently being battled by over 750 firefighters.
Multiple large fires are burning across western US states, with NASA's Aqua satellite capturing images of smoke and hot spots. The High Park Fire in Colorado has burned over 68,200 acres, while the Poco Fire in Arizona has burned over 11,950 acres.
The High Park Fire in Colorado has expanded to 65,738 acres with over 1,900 people battling the blaze. The fire has generated significant smoke visible on NASA satellite imagery, affecting nearby areas like Wyoming and Nebraska.
Researchers use a historic fire to model the sensitivity of a natural sensor found in fire beetles. The study reveals that these sensors can detect extremely low levels of heat, rivaling those of radio telescopes.
Fine-scale measurements can be incorporated into models to reduce wildfire hazard in the southeast, according to a new study published in Forest Ecology and Management. The research focuses on methods that incorporate hundreds of fuel observations into tools used by managers to assess wildfire potential.
A new study analyzing 1,500 years of tree-ring data and fire-scar records from the Southwest US found that today's megafires are atypical and driven by a combination of modern climate change and human activities. The researchers suggest that changes in fire management could be a solution to mitigate these extreme fires.
Researchers analyze lake sediment cores to infer past forest fire frequency and explore the success of First Nations' historical fire management strategies. They suggest a mixed approach combining controlled burning, silviculture, and aggressive fire suppression to mitigate increasing forest fires in Canada.
A new study published in Frontiers in Ecology and the Environment found that forest thinning to prevent or reduce severe wildfires releases more carbon into the atmosphere than saved by successful fire prevention. The research analyzed the effect of fuel treatments on wildfire and carbon stocks in several scenarios, concluding that eve...
A recent study found a significant increase in hydrocarbon levels along the Galicia coast five years after the Prestige oil spill, primarily due to forest fires in 2006. The pollution surge was attributed to the badly-handled ship course and subsequent pyrogenic pollution sources.
Historical data analysis reveals significant increase in forest fires in Valencia province starting from the 1970s. The shift can be attributed to depopulation, land use changes, and increased flammable vegetation. Fires are now more frequent and larger, posing challenges for long-term management.
A study by Spanish researchers found that spur-thighed tortoises in Mediterranean environments can withstand fires if they occur every 30 years. However, young tortoises are more susceptible to fire and disappear after each fire due to their limited shell development.
The fire disaster in the Carmel Mountains near Haifa is a typical example of climate change effect and a taste of the future, says Dr. Guy Pe'er. The frequency, intensity, and extent of the fires would increase due to prolonged droughts, increased water evaporation, and intense heat waves.
Researchers found that old logging practices led to unprecedented soil erosion in southern Oregon's Siskiyou Mountains, which remains a threat despite improved practices. The study analyzed charcoal, pollen, and sediment cores to understand the impacts of fires over the last 2,000 years.
A new 4,000-year study reconstructing fire history in the southern Appalachians supports the use of prescribed fire to reduce wildfire risk and restore forest health. The study found that fires became more frequent about 1,000 years ago, coinciding with the arrival of Native Americans.
Research suggests that frequent fires can promote forest composition and structure more consistent with historical conditions. This approach to land management may help save money and improve forest health.
Researchers found that land gastropod fauna are a good indicator of forest recovery following fires, with some species surviving in closed refuges. The study's findings suggest that post-fire forestry operations must consider the impact on these sensitive species to ensure their survival and habitat diversity.
A recent Oregon State University study found that forest fires consume only 1-3% of living trees' mass during fires, contrary to previous estimates. This reduction has significant implications for climate change mitigation strategies, with fire being a relatively minor player in greenhouse gas emissions.
The HRS technology combines space sensors with ground and air measurements to provide advance warnings of natural disasters such as forest fires. It can also identify water contamination, pollution spills and monsoon strikes, offering valuable insights for property developers and authorities.
New research from Oregon State University finds that fuel reduction treatments in Pacific Northwest forests may reduce carbon sequestration and worsen greenhouse warming. The study suggests that these efforts could lead to a net loss of carbon storage, even if biofuels are used to produce energy.
The study reveals that human activities are directly linked to the intensity of forest fires in Indonesia, with population density and land use being key factors. The research also highlights the impact of climate change and other meteorological phenomena on fire frequency and severity.
A US Forest Service study reveals that most homeowners in fire-prone areas have taken steps to protect their homes, but barriers such as financial constraints and physical limitations persist. The study also found that residents are concerned about fires and think they know how to reduce the threat.
Researchers at MIT have developed a sensor system that harnesses electricity from trees to predict and prevent forest fires. The system, which uses off-the-shelf batteries slowly recharged by tree power, can transmit temperature and humidity data wirelessly, enabling early alerts and improved fire prediction models.
A new study from the University of Colorado at Boulder found that fireproofing houses in forests can significantly reduce wildfire sizes. By insulating homes, fire risk is reduced, protecting not only structures but also neighboring forests and communities.
New research from UCLA finds that fireproofing homes dramatically reduces the spread of forest fires. By fireproofing not just their own homes but also those of their neighbors, individuals can help limit the damage and preserve entire neighborhoods.
A new Oregon State University study found that salvage logging and replanting increased fire severity in areas burned by the 2002 Biscuit Fire. Natural regeneration of forests appeared to result in less risk of severe future fires.
A University of Michigan study has found that forest fires release more mercury into the atmosphere than previously recognized. The research, led by Doctoral student Abir Biswas, estimates that wildfires and prescribed burns account for approximately 25 percent of human-generated mercury emissions in the United States.
A NASA-funded study using satellite data, computer models and weather balloon readings found that smoke from Alaskan and Canadian forest fires increased ozone pollution levels in Houston by 50-100%.
Researchers found that pollutants from forest fires in Alaska and Canada significantly increased ozone pollution levels above Houston on July 19-20, 2004. The study highlighted the critical role of imported sources in local air quality, emphasizing the need for improved air quality forecasting and solutions.
Scientists tracked air pollution from Alaskan-Canadian forest fires to Houston, finding a 50-100% increase in ozone levels within five kilometers of the city. This event highlights the impact of long-distance pollutants on local air quality and emphasizes the need for improved forecasting.
A study by the University of Alberta found that forest fires can cause substantial increases in human health risks, resulting in mortality risk, restricted activity days, and acute respiratory symptoms. The study estimated economic losses of $9-12 million from a 2001 fire in Chisholm, Alberta.
Two groups of researchers from Oregon State University and the USDA Forest Service exchange perspectives on post-wildfire salvage logging, forest regeneration, and fire risk. The OSU team questioned the methodology and conclusions of a previous study, while the response emphasizes the strength of the original design and findings.
Recent research found that climate change is strongly linked to increased frequency and severity of large forest fires in the western United States. The study analyzed wildfire data from 1970 to 2003, finding a significant correlation between warmer temperatures and earlier snowmelt, leading to drier conditions and longer fire seasons.
A new study published in Science finds that rising temperatures are exacerbating the number of large and costly wildfires in the western United States. The research, led by Scripps Institution of Oceanography, analyzed a database of recent large western wildfires since 1970 and compared it with climate and land-surface data from the re...
A new model predicts that implementing effective governance and conservation policies could preserve up to 73% of the Amazon forest by 2050. The study highlights the urgent need to redirect economic forces towards sustainable development and conservation.