Category: Research


Could Dangerous Underwater Volcano in Caribbean Cause a US Tsunami?

PHOTO: View from "Hercules," a 5,000-pound submersible used by Robert Ballard and his team.
Auto Start: On | Off

A team of scientists is exploring the darkest corners of a huge underwater volcano in the Caribbean in hopes of better understanding the mysteries of earthquakes and tsunamis, ultimately saving lives.

Kick’em Jenny is a dangerous and active volcano sitting roughly 6,000 feet below the surface of the Caribbean Sea, and located off the coast of the island of Grenada, south of St. Lucia.

Robert Ballard, famous for discovering the Titanic 12,000 feet below the surface of the icy North Atlantic in 1985, set his sights on exploring the Kick’em Jenny to study its eruption history and learn more about how underwater volcanoes can pose a threat.

Ballard, the president of The Ocean Exploration Trust and the director of the Center for Ocean Exploration at the University of Rhode Island’s Graduate School of Oceanography, said the Kick’em Jenny volcano has a history of explosive eruptions, which could have the potential to trigger tsunamis, the effects from which could be felt as far away as the northeastern United States.

 

Read More Here

Enhanced by Zemanta
About these ads

Fracking-linked earthquakes likely to worsen – seismologists

Published time: May 02, 2014 03:40

David McNew / Getty Images / AFP

David McNew / Getty Images / AFP

Ongoing hydraulic fracking operations will only exacerbate seismic activity, leading to heightened earthquakes in areas where wastewater is injected deep underground, according to new research.

To unleash natural gas, hydraulic fracturing – or fracking – requires large volumes of water, sand, and chemicals to be pumped underground. Scientists attending the Seismological Society of America (SSA) annual meeting said Thursday that this storage of wastewater in wells deep below the earth’s surface, in addition to fracking’s other processes, is changing the stress on existing faults, which could mean more frequent and larger quakes in the future.

Researchers previously believed quakes that resulted from fracking could not exceed a magnitude of 5.0, though stronger seismic events were recorded in 2011 around two heavily drilled areas in Colorado and Oklahoma.

“This demonstrates there is a significant hazard,” said Justin Rubinstein, a research geophysicist at the US Geological Survey (USGS), according to TIME magazine. “We need to address ongoing seismicity.”

Not all of the more than 30,000 fracking disposal wells are linked to quakes, but an accumulating body of evidence associates an uptick in seismic activity to fracking developments amid the current domestic energy boom.

The amount of toxic wastewater injected into the ground seems to provide some clarity as to what causes the earthquakes. A single fracking operation uses two to five million gallons of water, according to reports, but much more wastewater ends up in a disposal well.

 

Read More Here

Enhanced by Zemanta

ScienceDaily: Your source for the latest research news

 

 

 

…..

Tree rings reveal nightmare droughts in Western U.S.

May 1, 2014
Source:
Brigham Young University
Summary:
Scientists extended Utah’s climate record back to 1429 using tree rings. They found Utah’s climate has seen extreme droughts, including one that lasted 16 years. If history is repeated in the rapidly growing Western states, the water supply would run out based on current consumption.

Scientists extended Utah’s climate record back to 1429 using tree rings. They found Utah’s climate has seen extreme droughts, including one that lasted 16 years. Credit: Image courtesy of Brigham Young University

..

If you think the 1930s drought that caused The Dust Bowl was rough, new research looking at tree rings in the Rocky Mountains has news for you: Things can get much worse in the West.

In fact the worst drought of this century barely makes the top 10 of a study that extended Utah’s climate record back to the year 1429.

With sandpaper and microscopes, Brigham Young University professor Matthew Bekker analyzed rings from drought-sensitive tree species. He found several types of scenarios that could make life uncomfortable in what is now the nation’s third-fastest-growing state:

  • Long droughts: The year 1703 kicked off 16 years in a row with below average stream flow.
  • Intense droughts: The Weber River flowed at just 13 percent of normal in 1580 and dropped below 20 percent in three other periods.
  • Consecutive worst-case scenarios: The most severe drought in the record began in 1492, and four of the five worst droughts all happened during Christopher Columbus’ lifetime.

“We’re conservatively estimating the severity of these droughts that hit before the modern record, and we still see some that are kind of scary if they were to happen again,” said Bekker, a geography professor at BYU. “We would really have to change the way we do things here.”

Modern climate and stream flow records only go back about 100 years in this part of the country, so scientists like Bekker turn to Mother Nature’s own record-keeping to see the bigger picture. For this study, the BYU geographer took sample cores from Douglas fir and pinyon pine trees. The thickness of annual growth rings for these species is especially sensitive to water supply.

 

 

Read More Here

Enhanced by Zemanta

ScienceDaily: Your source for the latest research news

Undersea warfare: Viruses hijack deep-sea bacteria at hydrothermal vents

Date:
May 1, 2014
Source:
National Science Foundation
Summary:
More than a mile beneath the ocean’s surface, as dark clouds of mineral-rich water billow from seafloor hot springs called hydrothermal vents, unseen armies of viruses and bacteria wage war.

…..

Credit: NOAA

[Click to enlarge image]

More than a mile beneath the ocean’s surface, as dark clouds of mineral-rich water billow from seafloor hot springs called hydrothermal vents, unseen armies of viruses and bacteria wage war.

Like pirates boarding a treasure-laden ship, the viruses infect bacterial cells to get the loot: tiny globules of elemental sulfur stored inside the bacterial cells.

Instead of absconding with their prize, the viruses force the bacteria to burn their valuable sulfur reserves, then use the unleashed energy to replicate.

“Our findings suggest that viruses in the dark oceans indirectly access vast energy sources in the form of elemental sulfur,” said University of Michigan marine microbiologist and oceanographer Gregory Dick, whose team collected DNA from deep-sea microbes in seawater samples from hydrothermal vents in the Western Pacific Ocean and the Gulf of California.

“We suspect that these viruses are essentially hijacking bacterial cells and getting them to consume elemental sulfur so the viruses can propagate themselves,” said Karthik Anantharaman of the University of Michigan, first author of a paper on the findings published this week in the journal Science Express.

Similar microbial interactions have been observed in shallow ocean waters between photosynthetic bacteria and the viruses that prey upon them.

But this is the first time such a relationship has been seen in a chemosynthetic system, one in which the microbes rely solely on inorganic compounds, rather than sunlight, as their energy source.

“Viruses play a cardinal role in biogeochemical processes in ocean shallows,” said David Garrison, a program director in the National Science Foundation’s (NSF) Division of Ocean Sciences, which funded the research. “They may have similar importance in deep-sea thermal vent environments.”

 

Read More Here

Enhanced by Zemanta
WOOD PILE

Nutrient-rich forests absorb more carbon


by Staff Writers
Laxenburg, Austria (SPX) Apr 17, 2014


File image.

The ability of forests to sequester carbon from the atmosphere depends on nutrients available in the forest soils, shows new research from an international team of researchers, including IIASA.

The study, published in the journal Nature Climate Change, showed that forests growing in fertile soils with ample nutrients are able to sequester about 30% of the carbon that they take up during photosynthesis. In contrast, forests growing in nutrient-poor soils may retain only 6% of that carbon. The rest is returned to the atmosphere as respiration.

“This paper produces the first evidence that to really understand the carbon cycle, you have to look into issues of nutrient cycling within the soil,” says IIASA Ecosystems Services and Management Program Director Michael Obersteiner, who worked on the study as part of a new international research project sponsored by the European Research Council.

Marcos Fernandez-Martinez, first author of the paper and researcher at the Center for Ecological Research and Forestry Applications (CREAF) and the Spanish National Research Council (CSIC) says, “In general, nutrient-poor forests spend a lot of energy-carbon-through mechanisms to acquire nutrients from the soil, whereas nutrient-rich forests can use that carbon to enhance biomass production.”

 

Read More Here

 

…..

Research: Arid areas absorb unexpected amounts of carbon

By Eric Sorensen, WSU science writer

PULLMAN, Wash. – Researchers led by a Washington State University biologist have found that arid areas, among the biggest ecosystems on the planet, take up an unexpectedly large amount of carbon as levels of carbon dioxide increase in the atmosphere. The findings give scientists a better handle on the earth’s carbon budget – how much carbon remains in the atmosphere as CO2, contributing to global warming, and how much gets stored in the land or ocean in other carbon-containing forms.


“It has pointed out the importance of these arid ecosystems,” said R. Dave Evans, a WSU professor of biological sciences specializing in ecology and global change. “They are a major sink for atmospheric carbon dioxide, so as CO2 levels go up, they’ll increase their uptake of CO2 from the atmosphere. They’ll help take up some of that excess CO2 going into the atmosphere. They can’t take it all up, but they’ll help.”

Published in Nature Climate Change

The findings, published in the journal Nature Climate Change, come after a novel 10-year experiment in which researchers exposed plots in the Mojave Desert to elevated carbon-dioxide levels similar to those expected in 2050. The researchers then removed soil and plants down to a meter deep and measured how much carbon was absorbed.

“We just dug up the whole site and measured everything,” said Evans.

The idea for the experiment originated with scientists at Nevada’s universities in Reno and Las Vegas and the Desert Research Institute. Evans was brought in for his expertise in nutrient cycling and deserts, while researchers at the University of Idaho, Northern Arizona University, Arizona State University and Colorado State University also contributed.

Funding came from the U.S. Department of Energy’s Terrestrial Carbon Processes Program and the National Science Foundation’s Ecosystem Studies Program.

Vast lands play significant role

The work addresses one of the big unknowns of global warming: the degree to which land-based ecosystems absorb or release carbon dioxide as it increases in the atmosphere.

Receiving less than 10 inches of rain a year, arid areas run in a wide band at 30 degrees north and south latitude. Along with semi-arid areas, which receive less than 20 inches of rain a year, they account for nearly half the earth’s land surface.

 

Read More Here

…..

Yale School of Forestry & Environmental Studies.

 

04 Mar 2014: Analysis

Soil as Carbon Storehouse:
New Weapon in Climate Fight?

The degradation of soils from unsustainable agriculture and other development has released billions of tons of carbon into the atmosphere. But new research shows how effective land restoration could play a major role in sequestering CO2 and slowing climate change.

by judith d. schwartz

In the 19th century, as land-hungry pioneers steered their wagon trains westward across the United States, they encountered a vast landscape of towering grasses that nurtured deep, fertile soils.

Today, just three percent of North America’s tallgrass prairie remains. Its disappearance has had a dramatic impact on the landscape and ecology of

The world’s cultivated soils have lost 50 to 70 percent of their original carbon stock.

the U.S., but a key consequence of that transformation has largely been overlooked: a massive loss of soil carbon into the atmosphere. The importance of soil carbon — how it is leached from the earth and how that process can be reversed — is the subject of intensifying scientific investigation, with important implications for the effort to slow the rapid rise of carbon dioxide in the atmosphere.

According to Rattan Lal, director of Ohio State University’s Carbon Management and Sequestration Center, the world’s cultivated soils have lost between 50 and 70 percent of their original carbon stock, much of which has oxidized upon exposure to air to become CO2. Now, armed with rapidly expanding knowledge about carbon sequestration in soils, researchers are studying how land restoration programs in places like the

polar jet stream

Rattan Lal
Soil in a long-term experiment appears red when depleted of carbon (left) and dark brown when carbon content is high (right).

former North American prairie, the North China Plain, and even the parched interior of Australia might help put carbon back into the soil.

Absent carbon and critical microbes, soil becomes mere dirt, a process of deterioration that’s been rampant around the globe. Many scientists say that regenerative agricultural practices can turn back the carbon clock, reducing atmospheric CO2 while also boosting soil productivity and increasing resilience to floods and drought. Such regenerative techniques include planting fields year-round in crops or other cover, and agroforestry that combines crops, trees, and animal husbandry.

Recognition of the vital role played by soil carbon could mark an important if subtle shift in the discussion about global warming, which has been

A look at soil brings a sharper focus on potential carbon sinks.

heavily focused on curbing emissions of fossil fuels. But a look at soil brings a sharper focus on potential carbon sinks. Reducing emissions is crucial, but soil carbon sequestration needs to be part of the picture as well, says Lal. The top priorities, he says, are restoring degraded and eroded lands, as well as avoiding deforestation and the farming of peatlands, which are a major reservoir of carbon and are easily decomposed upon drainage and cultivation.

He adds that bringing carbon back into soils has to be done not only to offset fossil fuels, but also to feed our growing global population. “We cannot feed people if soil is degraded,” he says.

“Supply-side approaches, centered on CO2 sources, amount to reshuffling the Titanic deck chairs if we overlook demand-side solutions: where that carbon can and should go,” says Thomas J. Goreau, a biogeochemist and expert on carbon and nitrogen cycles who now serves as president of the Global Coral Reef Alliance. Goreau says we need to seek opportunities to increase soil carbon in all ecosystems — from tropical forests to pasture to wetlands — by replanting degraded areas, increased mulching of biomass instead of burning, large-scale use of biochar, improved pasture management, effective erosion control, and restoration of mangroves, salt marshes, and sea grasses.

“CO2 cannot be reduced to safe levels in time to avoid serious long-term impacts unless the other side of atmospheric CO2 balance is included,” Goreau says.

Scientists say that more carbon resides in soil than in the atmosphere and all plant life combined; there are 2,500 billion tons of carbon in soil, compared with 800 billion tons in the atmosphere and 560 billion tons in plant and animal life. And compared to many proposed geoengineering fixes, storing carbon in soil is simple: It’s a matter of returning carbon where it belongs.

Through photosynthesis, a plant draws carbon out of the air to form carbon compounds. What the plant doesn’t need for growth is exuded through the roots to feed soil organisms, whereby the carbon is humified, or rendered stable. Carbon is the main component of soil organic matter and helps give soil its water-retention capacity, its structure, and its fertility. According to Lal, some pools of carbon housed in soil aggregates are so stable that they can last thousands of years. This is in contrast to “active” soil carbon,

‘If we treat soil carbon as a renewable resource, we can change the dynamics,’ says an expert.

which resides in topsoil and is in continual flux between microbial hosts and the atmosphere.

“If we treat soil carbon as a renewable resource, we can change the dynamics,” says Goreau. “When we have erosion, we lose soil, which carries with it organic carbon, into waterways. When soil is exposed, it oxidizes, essentially burning the soil carbon. We can take an alternate trajectory.”

 

Read More Here

 

…..

Enhanced by Zemanta
ICE WORLD

Preglacial landscape found deep under Greenland ice


by Staff Writers
Washington (AFP) April 18, 2014

US geologists said Thursday they have uncovered a preglacial tundra landscape preserved for 2.7 million years far below the Greenland ice sheet.

Glaciers are known to scrape everything off any given plot of land — vegetation, soil and even the top layer of bedrock — so scientists expressed great surprise that they had found the landscape in pristine condition below two miles (three kilometers) of ice.

The finding provides strong evidence that the ice sheet has existed for much longer than previously known, and survived numerous global warming episodes, according to the lead researcher, University of Vermont geologist Paul Bierman.

Rather than scraping and sculpting the landscape, the ice sheet has been frozen to the ground, effectively creating “a refrigerator that’s preserved this antique landscape,” Bierman said.

The finding suggests that even during the warmest periods of the ice sheet’s life, the center of Greenland was stable and did not fully melt, allowing the tundra landscape to be sealed without modification through millions of years of changing temperatures.

 

Read More Here

 

…..

Massive canyon discovered buried under Greenland ice

A vast gorge in the Earth on the same scale as the Grand Canyon lies buried under ice in Greenland, scientists have learned.

The massive hidden canyon is at least 466 miles (740km) long and up to 800 metres (2,600ft) deep in places.

The feature, resembling a meandering river channel, is believed to pre-date the ice sheet that has covered Greenland for millions of years.

3D visualisation of the canyon under Greenland's ice sheet.

3D visualisation of the canyon under Greenland’s ice sheet. Photograph: Professor Jonathan Bamber

Prof Jonathan Bamber, from the school of geographical studies at the University of Bristol, said: “With Google Streetview available for many cities around the world and digital maps for everything from population density to happiness, one might assume that the landscape of the Earth has been fully explored and mapped.

“Our research shows there’s still a lot left to discover.”

The canyon was uncovered by airborne radar which can penetrate ice and bounce off the land beneath.

Scientists pieced together radar measurements covering thousands of kilometres collected by Arctic researchers over several decades. They found evidence of a fissure in the bedrock stretching northwards almost from the centre of Greenland.

The canyon ends in a deep fjord connecting it to the Arctic ocean.

 

Read More Here

 

…..

Enhanced by Zemanta
Land contaminated by waste from factories in Lanzhou, Gansu province. (File photo/Xinhua)

Land contaminated by waste from factories in Lanzhou, Gansu province. (File photo/Xinhua)

…..

  • China Begins Soil Pollution Clean-up amid Doubt over Funding

    BEIJING (Reuters) – China has announced its first pilot projects to treat metal pollution in soil and prevent farmland from further contamination, but critics say the government’s overall efforts are underfunded and inefficient.

    The Ministry of Finance will subsidize soil pollution prevention and treatment in three cities in the central province of Hunan, state media reported, as pilot efforts to halt developments that have rendered 3.33 million hectares (8 million acres) of Chinese farmland too polluted to grow crops on.

    Hunan was the source of rice containing dangerous levels of toxic cadmium sold in the southern city of Guangzhou last year.

    Under the plan, the Ministry of Agriculture will monitor and control metal residues to prevent them from leaking into the soil, while the rice crop will be replaced with cotton and other non-edible products.

    But government efforts to protect agricultural and urban soil fall massively short of what is needed, said Lan Hong, a professor at Renmin University’s School of Environmental and Natural Resources.

    In the current five-year plan, the Ministry of Finance has budgeted 30 billion yuan ($4.8 billion) in spending on soil pollution prevention efforts, but Lan said it would cost at least 140 billion yuan, nearly five times above the budget, to solve the problem.

    “The funding is based on data from the Ministry of Environmental Protection, but it is at the lower end of estimates. Some of the environmental damage will only be exposed after many years,” Lan told Reuters.

     

    Read More Here

     

    …..

    Plants used to weed out soil pollution

    Chinese scientists have developed soil remediation technologies to prepare for large-scale applications.

    The technologies focus on using plants to absorb heavy metal contaminants in soil.

    The technologies were developed by the Center for Environmental Remediation of the Institute of Geographic Sciences and Resources Research under the Chinese Academy of Sciences, which began research 10 years ago.

    Soil contamination is serious in China, with large areas of cropland polluted, said Lei Mei, a professor at the center.

    Soil remediation technologies have been applied on 133 hectares of land in the Guangxi Zhuang autonomous region, Henan, Yunnan and Hunan provinces and Beijing on a trial basis, and Lei said she believes the technologies will have “good application prospects”.

    A report from the Ministry of Environmental Protection on Thursday showed that about 19.4 per cent of farmland in China was polluted, according to Xinhua News Agency.

    “The publication of the survey result is a milestone for soil remediation in China,” Lei said.

    Read More Here

     

    …..

    Enhanced by Zemanta

    Beijing still not releasing soil pollution data: Xinhua

    • Xinhua
    Technical staff examine soil contaminated by heavy metal pollution. (File photo/Huang Chih-liang)

    Technical staff examine soil contaminated by heavy metal pollution. (File photo/Huang Chih-liang)

    China’s Ministry of Environmental Protection will not issue data related to soil pollution for the time being but will discuss the situation after an in-depth investigation, the ministry confirmed on Thursday. The ministry said it will be difficult to investigate soil pollution nationwide, adding that it will conduct further investigations in heavily polluted areas.

    In January, Beijing lawyer Dong Zhengwei sent an application to the ministry asking it to issue soil pollution data, as well as create detailed measures to handle it.

    The ministry said in February that the data is a state secret and refused to issue it. Dong was not satisfied and sent a second request. In response the ministry said soil pollution is still being investigated and related data remains a state secret, adding that data will be released after further evaluation. After news of Dong’s requests spread online, many people began to wonder just how polluted the country’s soil is.

    Ma Jun, head of the Institute of Public and Environmental Affairs, said in an interview with the Legal Daily that polluted soil may affect public health via food, crops and underground water.

    “Soil pollution is related to public health. Therefore, the public should have the right to be informed about the situation,” Ma said.

     

    Read More Here

     

    …..

    FARM NEWS

    China says massive area of its soil polluted


    by Staff Writers
    Beijing (AFP) April 17, 2014


    More dead pigs found in China river: report
    Beijing (AFP) April 17, 2014 – At least 170 dead pigs have been found in a Chinese river, state media reported Thursday — the latest in a string of similar incidents that have raised fears over food safety.
    The animals were found floating in a tributary of China’s second-longest waterway, the Yellow River, in northwestern Qinghai province, the official Xinhua news agency said.The grim discovery follows a series of scandals involving dead pigs in Chinese rivers. Last year 16,000 carcasses were found drifting through the main waterway of the commercial hub of Shanghai.In Qinghai — the furthest west such an incident has been reported — “the source of the dead pigs is still under investigation,” Xinhua said, citing local authorities.Industry analysts say sick pigs are sometimes dumped in rivers by farmers hoping to avoid paying the costs of disposing of the animals by other means.Around 500 dead pigs are recovered every month from a Chinese reservoir in the southwestern province of Sichuan, state-run media reported in March.

    Authorities also found 157 dead pigs last month in a river in central Jiangxi province.

    China is a major producer of pork, which surveys have found to be the country’s most popular meat.

     

    A huge area of China’s soil covering more than twice the size of Spain is estimated to be polluted, the government said Thursday, announcing findings of a survey previously kept secret.

    Of about 6.3 million square kilometres (2.4 million square miles) of soil surveyed — roughly two thirds of China’s total area — 16.1 percent is thought to be polluted, the environmental protection ministry said in a report.

    The study, which appeared on its website, blamed mining and farming practices among other causes.

    “The national soil pollution situation is not positive,” the ministry said, adding that more than 19 percent of the farmland which was surveyed is polluted.

    The ministry last year described the results of its soil pollution survey as a state secret and refused to release the results, a move which incensed environmental campaigners.

    The government has come under increasing pressure in recent years to take action to improve the environment, with large parts of the country repeatedly blanketed in thick smog and waterways and land polluted.

     

    Read More Here

     

    …..

    The American Interest

    Filth to Table

    Relentless Pollution is Poisoning China’s Food, Soil

    © Getty Images

    In many parts of China, officials are caught between two competing priorities: industrial development and food production. Most often, officials’ prime concern is industrial development—characterized by factories and mining, usually—since it is the bigger driver of economic growth. But, predictably, unfettered industrial development results in extremely poor conditions for food production. And it’s getting worse. Much worse. An article in yesterday’s New York Times has some sobering statistics.

    An alarming glimpse of official findings came on Monday, when a vice minister of land and resources, Wang Shiyuan, said at a news conference in Beijing that eight million acres of China’s farmland, equal to the size of Maryland, had become so polluted that planting crops on it “should not be allowed.” [...]

    One-sixth of China’s arable land — nearly 50 million acres — suffers from soil pollution, according to a book published this year by the Ministry of Environmental Protection. The book, “Soil Pollution and Physical Health,” said that more than 13 million tons of crops harvested each year were contaminated with heavy metals, and that 22 million acres of farmland were affected by pesticides.

    The result of farming on polluted land is unsurprising: poisoned food. 155 batches of rice collected from markets and restaurants in Guangdong Province in May were found to have excess levels of cadmium.

     

    Read More Here

    …..

    Enhanced by Zemanta
    TIME AND SPACE

     


    by Brooks Hays
    Syracuse, N.Y. (UPI) Apr 15, 2013


    disclaimer: image is for illustration purposes only

    A new and exotic atomic particle — one that doesn’t mesh with traditional particle physics models — has been discovered by researchers at Syracuse University.

    The discovery was made as part of the Large Hadron Collider beauty Collaboration, a multinational research project aimed at finding and studying new quantum forces and particles. Led by researchers from Syracuse, the project is headquartered at the European Organization for Nuclear Research (CERN) in Geneva, Switzerland, the biggest particle physics laboratory in the world.

    In a new paper, scientists working on the LHCb team claim to have discovered a brand new type of particle.

    “We’ve confirmed the unambiguous observation of a very exotic state — something that looks like a particle composed of two quarks and two anti-quarks,” explained Tomasz Skwarnicki, one of the paper’s lead authors and a specialist in experimental high-energy physics. “The discovery certainly doesn’t fit the traditional quark model. It may give us a new way of looking at strong-interaction physics.”

     

    Read More Here

    Enhanced by Zemanta

    KING 5.com

     

    Climate change increasing massive wildfires in West

    Climate change increasing massive wildfires in West

    Credit: Draysen Brooks Bechard

    Wildfire near Wenatchee, 2013.

    by Doyle Rice, USA TODAY

    Posted on April 19, 2014 at 11:06 AM

    Updated today at 11:09 AM

     

    Massive wildfires are on the increase in the Western US due to rising temperatures and worsening drought from climate change, and the trend could continue in the decades to come, new research suggests.

    Overall, the number of large wildfires increased by a rate of seven fires a year from 1984 to 2011, while the total area damaged by fire increased at a rate of nearly 90,000 acres per year, according to the study, published this week in Geophysical Research Letters, a journal of the American Geophysical Union (AGU).

    The study comes against the backdrop of what could to be a disastrous year for fires in the West, especially drought-plagued California, which even saw fires in the normally quiet month of January.

    Though relatively calm this week, “Expect dry and windy conditions to develop over the Southwest Tuesday and Wednesday,” according to a forecast Friday from the National Interagency Fire Center in Boise. By May, “Above normal significant fire potential will expand over portions of Southern, Central and Northern California,” the NIFC predicted earlier this month.

     

    Read More Here

    Enhanced by Zemanta
    Follow

    Get every new post delivered to your Inbox.

    Join 1,572 other followers