Hopes of mild climate change dashed by new research

Discussion in 'Politics' started by futurecurrents, Jul 6, 2017.

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    Melting permafrost is altering the landscape in northern Canada on a grand scale. Credit: Wikimedia

    https://insideclimatenews.org/news/27022017/global-warming-permafrost-study-melt-canada-siberia

    Massive Permafrost Thaw Documented in Canada, Portends Huge Carbon Release
    Study shows 52,000 square miles in rapid decline, with sediment and carbon threatening the surrounding environment and potentially accelerating global warming.
    By Bob Berwyn, InsideClimate News
    Feb 28, 2017



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    Warnings of new Arctic explosions at some 700-plus sites in Yamal due to thawing permafrost
    By The Siberian Times reporter
    04 July 2017

    Scientists rush to site of latest tundra eruption - which formed a crater 50 metres deep - amid fears for homes and key industrial sites.
    http://siberiantimes.com/other/othe...lus-sites-in-yamal-due-to-thawing-permafrost/

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    7,000 underground gas bubbles poised to 'explode' in Arctic
    By The Siberian Times reporter
    20 March 2017

    Bulging bumps in the Yamal and Gydan peninsulas believed to be caused by thawing permafrost releasing methane.
    http://siberiantimes.com/science/ca...ound-gas-bubbles-poised-to-explode-in-arctic/

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    Thawing permafrost has communities like Newtok, Alaska literally losing the ground under their feet. Credit: Getty Images


    Global Warming Could Thaw Far More Permafrost Than Expected, Study Says
    Research says more than 40 percent of the frozen tundra could un-freeze if global temperatures continue to rise, scientists find.
    Zahra Hirji
    By Zahra Hirji
    Apr 10, 2017

    https://insideclimatenews.org/news/10042017/permafrost-climate-change-arctic-carbon-release

    Q

    More than 40 percent of the world's permafrost—landscape covered in frozen soil—is at risk of thawing even if the world succeeds in limiting global warming to the international goal of 2 degrees Celsius, according to a new study.

    Currently, permafrost covers about nearly 5.8 million square miles, and scientists found as much as 2.5 million square miles of that could thaw—about twice the area of Alaska, California and Texas combined—in a 2 degree Celsius scenario. Thawing would be more limited if warming can be held to 1.5 degrees Celsius, but could still affect 1.8 million square miles.
    UQ
     
    Last edited: Jul 10, 2017
    #91     Jul 10, 2017
  2. Last edited: Jul 10, 2017
    #92     Jul 10, 2017

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    Chief Eddie Hoffman Highway, seen on June 28, is the main thoroughfare in Bethel, and one of few paved roads. It has become a roller coaster of a ride over the past couple of years. The state Department of Transportation is studying whether heaving from the thaw-freeze of permafrost is a factor. (Lisa Demer / Alaska Dispatch News)

    https://www.adn.com/alaska-news/rur...es-increased-shifting-of-roads-and-buildings/

    Rural Alaska
    ‘The permafrost is dying’: Bethel sees increased shifting of roads and buildings

    pencil Author: Lisa Demer clock Updated: 1 day ago calendar Published 2 days ago

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    Demolition work on the building that housed the state Office of Children’s Services in Bethel continues on June 22. The building suffered interior damage while being leveled in Oct. 2016. (Lisa Demer / Alaska Dispatch News)


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    Craig Rogers, a longtime electric utility lineman in Bethel seen here on June 28, says his own home settled unevenly on a new pad built up with 138 dump truck loads of dirt. This corner sank 2 feet into the ground. As a final step to even it out, he inserted wedged shims of wood underneath. (Lisa Demer / Alaska Dispatch News)


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    Chief Eddie Hoffman Highway, seen on June 28, has become a roller coaster of a ride. (Lisa Demer / Alaska Dispatch News)



    About this Author
    Lisa Demer

    Lisa Demer is based in Bethel and covers rural Alaska stories. She has been a reporter more than three decades. Reach her at 907-543-3555.
     
    #93     Jul 10, 2017
  4. gwb-trading

    gwb-trading

    Permafrost causing heaves in roads in Alaska has been going on for decades. It is nothing new. Go read the story of the construction of the Alaska Highway during WW2 and the problems they had with permafrost.
     
    #94     Jul 10, 2017
    traderob likes this.
  5. 1. with sediment and carbon threatening the surrounding environment and potentially accelerating global warming.

    2. Scientists rush to site of latest tundra eruption
     
    #95     Jul 10, 2017