Global Warming Fuels the Acceleration and Intensity of Forest Fires

Climate change has doubled Western U.S forest fires. Indisputably, global warming does have a huge impact on temperature, precipitation levels, and soil moisture. As global warming is getting more serious, moisture and precipitation levels are changed remarkably and wet areas are becoming wetter and dry areas are becoming drier. Consequently, the temperatures in spring and summer get higher, coupled with earlier spring snowmelt, which increases the likelihood of drought and a rather lengthy and intense wildfire season.

 

The Campfire in 2018 in northern California is the most destructive and deadliest wildfire in state history. Studies found that climate change has doubled Western U.S forest fires during the last 13 years and the average wildfire season last over than 78 days.

image source

 

More and more studies tracked the ebb and flow of ecosystem changes on a worldwide scale. Large-scale and long-lasting changes in the ecosystems and deforestation might be the cause of the higher frequency of forest fires.

 

Researches found that earlier snowmelt in the spring and summer has led to hot dry conditions of the forest, which boosts the fire activity in some sections.  And the cost of wildfire is much beyond property damage. Air pollution would be considerably increased, which exacerbated lung diseases in individuals as well.

Wildfires are on the rise

“[P]rojections show that an average annual 1 degree Celsius temperature increase would increase the median burned area per year as much as 600 percent in some types of forests […] Wildfire risk depends on a number of factors, including temperature, soil moisture, and the presence of trees, shrubs, and other potential fuel[…] Warmer, drier conditions also contribute to the spread of the mountain pine beetle and other insects that can weaken or kill trees, building up the fuels in a forest. ” ( C2ES, Wildfires and Climate Change)

 

The economic costs of wildfires

“Since 2000, 11 forest fires in the United States have caused at least $1 billion in damages each, mainly from the loss of homes and infrastructure, along with firefighting costs. The 2017 wildfire season is well above average, with deadly fires in California and throughout the West, including Montana, Oregon, and Washington state. In 2015, wildfires burned more than 10 million acres across the United States, half of that in Alaska alone […] The costliest fires occurred in California, where more than 2,500 structures were destroyed in the Valley and Butte wildfires.” ( C2ES, Wildfires and Climate Change)

image source:California wildfires: Seeking solutions to a wicked problem

 

 “Surprisingly, some dry grasslands may be less at risk of catching fire because the intense aridity is likely to prevent these grasses from growing at all, leaving these areas so barren that they are likely to lack the fodder for wildfires to start and spread […] The risk to property owners is particularly acute in areas at the “wildland-urban interface.” In California alone, this area includes more than 5 million homes in coastal southern California, the Bay Area, and northeast of Sacramento[…] A counterintuitive aspect of mountain forest wildfires is their ability to increase flash flood risk. The loss of vegetation from wildfires and the inability of burned soil to absorb moisture can cause flash floods in lower-lying areas when rains do come in the days and months following fires, especially to the semi-arid Southwest […] Creating buffer zones between human habitation and susceptible forests, and meeting home and city fire-safety standards—we can help reduce our current risks” (Union of Concerned Scientist, Is Global Warming Fueling Increased Wildfire Risks?)

 

High winds accelerate two deadly wildfires in Southern California in 2019

 

Reference

Combined effects of climate change and forest fires, 2018, published in 2018 issue of Frontiers in Ecology and Evolution)

Europe’s Historic Fires Caused By Climate Change?

The Washington Post, The really scary thing about wildfires is how they can worsen climate change

BBC News, Actor Gerard Butler’s home destroyed by California wildfire

he New York Times, Neil Young and Miley Cyrus Among Celebrities Who Lost Homes in California Wildfires

 Fox News, James Woods uses Twitter to support California wildfire victims, calls on Hollywood stars to stop ‘trolling’ and help

 

加州大火焚極樂園 大咖明星逃離豪宅《57爆新聞》精選篇 網路獨播版

2018 California wildfires 加州野火死傷慘重。據美國國家股播公司(NBC)報導,坎普野火(Camp Fire)是加州史上造成傷亡最慘重的野火,比1933年野火更嚴重,當時造成29人死亡。官方指出,火勢已摧毀7,600棟民宅、260棟商業建築、逾2萬6千名民眾須撤離。

 

據法新社的報導, 目前至少已有50人喪生,數千消防人員都投入打火救援。標特郡(Butte County)警長哈尼亞(Kory Honea )說:「死亡人數增加至48人,這6具遺骸都是在天堂鎮發現,都是在住宅裡。」


以上文章出現過的單字

Celsius temperature 攝氏
pine beetle 中文:松甲蟲
acreage 中文:面積
bog 中文:濕地,沼澤,沼澤地
precipitation levels 中文: 降水量
grassland 中文 草原
aridity中文: 乾旱
fodder中文:飼料
counterintuitive 中文:有悖常理

greenhouse 溫室
greenhouse-gas emissions溫室氣體排放
buffer zones 緩衝區


Extinguishing president Trump’s California wildfire claim

 

Impact Of Climate Change On Forest Fires (AskNRCan) site

新聞相關字:「伍爾斯野火」(Woolsey Fire)天堂鎮(Paradise)馬里布(Malibu)

tag: Campfire, wildfire in California’s history, California wildfire, forest management, Trump’s tweet on California wildfire,
forest fires, climate change, tragedy, victim, sedimentary records, ancient wildfires reconstruct the wetland, vegetation and fire history, climate variability, relief funding,  greenhouse gasses, changes to the ecosystem, Wildfires and Climate Change, land use, firefighting tactics, warmer temperatures and drier conditions, Colorado’s two most destructive fires , the Waldo Canyon and High Park fires, The costs of wildfires, the death of human beings, property damage, Natural cycles, human activities,land-use change , fire exclusion,likelihood of wildfires, wildfire activity, Yosemite National Park and the Northern Rockies,
Precipitation patterns, wildfire frequency inU.S,climate warms, droughts, cyclical weather, El Niño events,US wildfire seasons ,human mistakes, God’s wrath, Wildfire Risks, Wildfire safety and prevention, greenhouse-gas emissions , severity and frequency of wildfire 

司馬儀

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