Thursday, March 27, 2014

Candra Jumper Blog 7 March 27, 2014 12:05am Climate change shifts the earth in Alaska


According the article, global warming is causing the Earth to reshape and shift in land mass. In very cold areas prone to subzero temperatures such as the arctic and the tundra, there is a frozen layer of the Earth that scientists refer to as permafrost. Permafrost is found across the top of the Northern Hemisphere, especially in Alaska, Arctic Canada and Siberia in Russia. Scientists have traveled over much of those regions and measured temperatures and observed the effects of melting permafrost. Permafrost is what its name implies, permanently frozen ground.  Permafrost is usually several feet deep and according to scientists has remained frozen for several hundred years.  The article states that this thick subsurface layer of soil that remains frozen throughout the years, occurring only in chiefly Polar Regions, is beginning to melt away.
In a nutshell this article expressing how scientist are tracking the Earth’s temperatures and keeping a record of how they are rising as time goes on. One reason for the rising temperatures and the melting of glaciers and permafrost is due to greenhouse gasses that are trapped in the Earth’s atmosphere.  According to the article, scientists have estimated that there is twice as much carbon in the permafrost layers as in the atmosphere now, so we are looking at tripling the carbon dioxide. And that basically means more warming. It's a very dangerous cycle that deserves immediate attention before something drastic occurs hear on Earth.
What is interesting about this article is scientist have built simulations of the earth’s permafrost layer in underground tunnels to study the effects of prolonged exposure to carbon dioxide. The findings were that eventually the surface would wear down and fall off. This means that possibly, in reality, if something is not done about global warming the Earth’s frozen layers will begin to melt and break away, reshaping the Earth today as we know it.
 http://www.aljazeera.com/indepth/features/2014/03/climate-change-shifts-earth-alaska-2014327667287787.html

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