By KATIERA WINFREY
Climate scientists credit a new satellite mapping system with helping firefighters battle wildfires, and they say the new system helps better connect fire agencies across the state.
A lot of the fire-spotting happens at the National Weather Service.
The fire-mapping system has proven to be most helpful in rural areas where wildfires popped up recently.
By Melissa Sevigny
The U.S. Forest Service allowed fire to burn more than 73,500 acres in northern Arizona last year. New research examines how well these “managed wildfires” restore healthy, historical conditions to ponderosa pine forests.
Scientists with Northern Arizona University’s Ecological Restoration Institute examined 10 large burned areas on the Coconino and Kaibab national forests. Ecologist David Huffman said managers allowed these areas to burn during the last decade to meet multiple restoration goals.
“Wildfire is difficult to control and manage for precise effects — sort of a blunt tool,” he said. “So we need to understand what it’s doing out there in terms of changing forest structure.”
The study found moderate-severity fires met two-thirds of the restoration goals. This was the only type of fire that restored tree density and canopy cover to historical conditions.
A study of Front Range forests burned by wildfires between 1996 and 2003 shows they are not regenerating as well as expected and large portions may become grasslands or shrub lands in coming years.
The paper, published in the journal Ecosphere by former doctoral student Monica Rother and geography professor Thomas Veblen, examined the sites of six low-elevation ponderosa pine forest fires which collectively burned 162,000 acres along the Colorado Front Range between 1996 and 2003. Eight to 15 years after the fires, the researchers expected – based on historical patterns – to see young trees cropping up across the landscape. Instead, 59 percent of plots surveyed showed no conifer seedlings at all and 83 percent showed a very low density of seedlings. Although it is possible that more seedlings will appear in upcoming years, future warming and associated drought may hinder significant further recovery.
“It is alarming, but we were not surprised by the results given what you see when you hike through these areas,” said Rother, who earned her doctorate from CU Boulder in 2015 and works as a fire ecologist at Tall Timbers Research Station in Tallahassee, Florida.
By Rob Chaney
Federal workers scrambled on Tuesday to interpret how President Donald Trump’s hiring freeze of civilian employees might affect seasonal firefighters and other part-time employees.Trump’s order, issued Monday, stated “no vacant positions existing at noon on January 22, 2017, may be filled and no new positions may be created, except in limited circumstances.”
“The head of any executive department or agency may exempt from the hiring freeze any positions that it deems necessary to meet national security or public safety responsibilities,” the order continued. “In addition, the Director of the Office of Personnel Management (OPM) may grant exemptions from this freeze where those exemptions are otherwise necessary.”
National Federation of Federal Employees (NFFE) Council President Melissa Baumann said the order left her in the dark about U.S. Forest Service staffing, especially with hiring fairs for permanent firefighting professionals starting next week.
Another severe fire season has come and gone. This past year, 60,000 fires scorched nearly 5.5 million acres, destroying 5,000 homes and buildings. Most tragically, we suffered the loss of 12 federal, state and local wildland firefighters. The continuing national trend is clear — fire seasons are longer and wildfires burn bigger, hotter and faster.
As fires increase, so does the impact on the U.S. Forest Service’s budget. Responding to catastrophic fires demands a larger and larger percentage of the agency’s financial resources. The costs of firefighting were once relatively stable and could be predicted. But drought, changes in climate, longer and hotter fire seasons, and the complexity of protecting more than 44 million homes in and around forest edges are sending costs skyward.
As the new Congress convenes, Americans at large — especially those who have experienced the destruction and threats to safety, property and clean air and water firsthand — are again looking to Congress to finally approve the bipartisan relief they came short of enacting last session.
Scientists say more low-intensity wildfires are needed to clear out overgrown forests to help prevent bigger fires. Deciding where and when to let fires burn is tricky.
Dangerous wildfires made a lot of news across this country last year. But there are scientists who say we need more fires, low-intensity ones that clear out overgrown forests and help prevent the bigger fires. Deciding where and when to let fires burn is tricky, and so the U.S. Forest Service is working on a new approach.
Posted by Stanford
A new process makes hydrogels out of cheaper materials. Tests show they can be useful for more applications, including wine-making and firefighting.
Hydrogels are gelatinous amalgams of cross-linked polymers that can absorb and hold large quantities of water. They’re useful in absorbent disposable diapers, as well as soft contact lenses.
Were it not for factors including high manufacturing costs, hydrogels could find even broader commercial application. The synthetic polymers now used for their production are often expensive or difficult to make on an industrial scale, and frequently present environmental and safety concerns. But those limitations may soon vanish.
A team of researchers has created new hydrogels that incorporate two abundant and inexpensive basic ingredients: a cellulose polymer derived from natural sources such as wood chips and agricultural waste; and colloidal silica, a liquid suspension of nanoscale particles derived from sand.
Fires aren’t all bad. Some fires help forests become healthier, but scientists say they’re sorely lacking in California.
Sierra Nevada forests are adapted to low-intensity fires that clear the underbrush and prevent trees from getting too dense. After a century of fire suppression, many forests are overgrown, which can make catastrophic fires worse.
So forest managers are piloting a new policy designed to shift a century-old mentality about fire in the West.
The idea is to let naturally-caused fires burn when they aren’t a threat to homes or people. But actually making those decisions on the ground isn’t easy in a crowded state like California.
Forest fires are burning longer and stronger across the western United States, lighting up the landscape with alarming frequency. Residents are forced to flee, homes are incinerated, wildlife habitats are destroyed, lives are lost. Last year, the Forest Service spent more than half its annual budget fighting fires.
Scientists have long theorized that climate change has contributed to the longer fire seasons, the growing number and destructiveness of fires and the increasing area of land consumed, though some experts suggest that the current fire phenomenon is not just a result of a changing climate, but also fire-suppressing policies practiced by the government for the last century or more.
In a new study published Monday in Proceedings of the National Academy of Sciences, scientists from the University of Idaho and Columbia University have calculated how much of the increased scope and intensity of Western wildfires can be attributed to human-caused climate change and its effects. They state that, since 1979, climate change is responsible for more than half of the dryness of Western forests and the increased length of the fire season. Since 1984, those factors have enlarged the cumulative forest fire area by 16,000 square miles, about the size of Massachusetts and Connecticut combined, they found.
The Fort McMurray disaster may be just a taste of what’s ahead – as the warming climate looks to increase large forest fires in Canada by 50% by the end of the century.
A new report from Natural Resources Canada has revealed that climate change will have a significant impact on forest fires in the coming years.
While the Fort McMurray wildfire that covered 590,000 hectares is expected to become the largest insurance loss in Canadian history, the increasing size of fires may mean that the record will be quickly outstripped.