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05-20-2014, 11:51 AM #1
Heightened Antarctic ice loss may prompt volcanic activity
Heightened Antarctic ice loss may prompt volcanic activity: Study
DDN Correspondent Posted on 20 May, 2014 at 03:27:PM
There Is Added Reason To Be Worried About The Melting Antarctic Ice Sheets As Climate Change Is Bringing About The Deformation In The Earth's Crust Which Poses Threat Of Volcanic Activity.
This, in turn would lead to a rise in the global sea-level, study suggests.
The researchers from the Newcastle University, UK with the help of the Global Positioning System (GPS) stations analysed the effect of the breakdown of the massive Larsen B ice sheet in the year 2002.
It also led them to understand how the Earth's mantle responded to the relatively unexpected loss of billions of tonnes of ice as glaciers accelerated.
Professor King said in a statement, "It's like the earth in 2002 was prodded by a stick, a very big stick, and we've been able to watch how it responded. We see the earth as being tremendously dynamic and always changing, responding to the forces."
He further commented, "It's one of the big unknowns: If something starts to happen with one of those volcanoes, our estimates of what sea levels might be like in the future may have a significant revision. Fire and ice generally don't go well together".
Such dynamism involves rocks that are hundreds of kilometers below the surface moving swiftly and could pose implications for volcanoes in the area.
In the words of Professor King, "It's a big 'if' - but if a volcano erupted from underneath the ice sheet, it would dramatically accelerate the ice melt and the flows into the oceans."
The latest Intergovernmental Panel on Climate Change report in the year 2013 projected that the global sea levels could rise between about 0.5 and 1 meter by the year 2100, depending on high rates of greenhouse gas emissions.
With a rapid breakdown of the Antarctic ice sheets, the western region of the continent, could witness much higher sea-level rises.
The new research, published in the Earth and Planetary Science Letters this month, may also impact regions with somewhat similar geology, such as Alaska.
Professor Matt King said in a statement, "The Alaskan glaciers are melting and the upper mantle is slightly runnier as well."
He further said that an earthquake of a greater intensity is expected in the region with the tectonic plates coming into contact.
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http://www.delhidailynews.com/news/H...dy-1400594247/
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05-21-2014, 11:53 AM #2
"In late September 2013, the ice surrounding Antarctica reached its annual winter maximum and set a new record. Sea ice extended over 19.47 million square kilometers (7.51 million square miles) of the Southern Ocean. The previous record of 19.44 million square kilometers was set in September 2012."
http://earthobservatory.nasa.gov/IOTD/view.php?id=82160alipac.us; americanpolicy.org; conservativeusa.org; eagleforum.org; gunowners.org; jbs.org; oathkeepers.org; saf.org
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05-21-2014, 12:27 PM #3
Annapolis, other cultural sites at risk from sea level rise
CapitalGazette.com
A group of scientists says that gradual sea level rise and storms intensified by slowly rising waters threaten the Annapolis Historic District.'Raise your voice, not the sea level'
The Hindu
Encouraging the younger generation to participate and come up with solutions to address a host of environmental issues like global warming, rising ...
New tide gauge uses GPS signals to measure sea level change
Phys.Org
Measuring sea level is an increasingly important part of climate research, and a rising mean sea level is one of the most tangible consequences of ...
How South Florida Is Ignoring The State's Leading Politicians And Taking On Climate Change
ThinkProgress
The rate of sea level rise along the East Coast is accelerating three to four times faster than the global average, according to the U.S. Geological ...
How Rising Seas Could Sink East Coast Nuclear Plants
InsideClimate News
... and update their plans for addressing extreme seismic activity and potential flooding from other events, such as sea level rise and storm surges.NO AMNESTY
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