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NASA finds huge underground heat-source in Antarctic responsible for ice shelf crumbling


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A MASSIVE subterranean heat source – identical to that triggering Hawaii’s volcano - has been discovered under the West Antarctic Ice Shelf – a glacial area often cited by environmentalists as a ‘climate change’ disaster waiting to happen.

But NASA scientists have discovered a fiercely hot geothermal heat source known as a mantle plume underneath the Antarctica’s Marie Byrd Land.

In the year 2000 an iceberg the size of Wales broke away from the shelf and the whole of the western edge is famously unstable.

Many environmentalists blamed man-made climate change.

And a news story in the Independent warned: “Climate change and the hole in the ozone layer could cause 'a catastrophic collapse' of the vast amount of ice on west Antarctica, raising sea levels by 3.3 metres.”

 

But the discovery of a mantle plume – a mass of superheated molten rock close to the Earth’s surface – has posed new questions.

A mantle plume – the same geothermal phenomena powering the current Mount Kilauea volcano in Hawaii - is a stream of hot rock rising up through the Earth’s mantle and spreading beneath the crust like a mushroom .

The mantle plume theory was developed in the 1970s to address apparently inexplicable geothermal activity thousands of miles far from the boundary of a tectonic plate.

Scientists believe a mantle plume exists underneath Antarctica’s Marie Byrd Land explaining the well-documented instability and weakness of the ice sheet today.

One study was published in the Journal of Geophysical Research4 and backed by a detailed NASA study that adds evidence that there is a geothermal heat source beneath the Antarctica region.

 

Researchers Helene Seroussi and Erik Ivins of NASA’s Jet Propulsion Laboratory created a model of the areas of melting and freezing under the ice in the region.

NASA’s model showed showed a measure of heat around 180 milliwatts per square meter. At Yellowstone Park – famed for its hot springs and geothermal geysers – the temperature is only a little higher at 200 milliwatts per square meter.

Another recent scientific study showed thinning and melting of Marie Byrd Land is not a new – post industrial – phenomenon.

The West Antarctic Ice Sheet has thinned by more than 700 meters near the coast throughout the past 10,000 years.

https://www.express.co.uk/news/world/971119/NASA-Antarctic-global-warming-denial-climate-change-Mount-Kilauea-Ross-Ice-Shelf

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There have always been warm places in antarctica...nothing new...the ruling caste is f....our brains with problems it creates. B)

 

 

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This discovery is an interesting argument against "climate change" fanatics, whose watchword seems to be "Back to the caves",  who blame ANY energy and alternative energy source as cause of dramatic and catastrophic events for coming years.

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19 hours ago, luisam said:

This discovery is an interesting argument against "climate change" fanatics, whose watchword seems to be "Back to the caves",  who blame ANY energy and alternative energy source as cause of dramatic and catastrophic events for coming years.

it is also a very good argument for the deniers who can says, look, we are not to blame, so we still can continue to pollute as much as we can in order we save/make money.

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This was originally posted by NASA in November 2017.  This still should not be used as an argument against reducing carbon emissions which are responsible for climate change.  Green energy is being embraced by many corporations, and is the future.

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On 11/06/2018 at 7:46 PM, dhjohns said:

Green energy is being embraced by many corporations

2018 ranking of the leading global oil and gas companies based on revenue (in billion U.S. dollars)

https://www.statista.com/statistics/272710/top-10-oil-and-gas-companies-worldwide-based-on-revenue/

https://en.wikipedia.org/wiki/List_of_largest_oil_and_gas_companies_by_revenue

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