This summer arctic sea ice shrank to the second-lowest level ever recorded since scientist have been satellite monitoring the arctic sea ice. The lowest the sea ice has ever been in recorded history was 1.31 million square miles, this summer the arctic sea ice only extended 1.6 million square miles. There are some researchers that believe that by 2030 the all the ice in the Arctic Ocean will have melted and the the Arctic will be ice free. The more global warming increases and the earth's temperture continues to increase the more arctic ice will melt. If the arctic ice continues to melt sea levels will rise which can cause floods and erosion. Rising sea levels also pose a threat to coastal ecosystems. We need to take action to put a stop to the rising sea levels caused by melting arctic ice. In order to do so we need to find ways to reduce global warming so that earths temperatures do not continue to grow and so the arctic ice no longer melts as much. http://www.nytimes.com/2016/09/20/science/shrinking-artic-ice.html?rref=collection%2Fsectioncollection%2Fearth
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There is great debate over whether or not fracking should be practiced in the U.S. and around the world. Many opponents of the practice would say that fracking can cause earthquakes. Although, there have not been many earthquakes that link back to fracking in the U.S., in Canada there have been a number of earthquakes in recent years that are attributed to fracking. Scientists at the University of Calgary have found that fracking can lead to earthquakes because pressure on the ground is increased when the fracking is occuring and by pressure changes due to the lingering presence of fracking fluid. Learning about the effects of practices such as fracking is good for the environment. People are able to learn if the processes are safe for the environment and for the people living near the area being worked on. By learning the effects of fracking people will be able to determine if it is a practice that will not cause harm if it is continued or if it has harmful consequences and needs to be change so that it is not harmful to the environment. http://www.nytimes.com/2016/11/18/science/fracking-earthquakes-alberta-canada.html?rref=collection%2Fsectioncollection%2Fearth&action=click&contentCollection=earth®i on=stream&module=stream_unit&version=latest&contentPlacement=14&pgtype=sectionfr ont |
Gisselle PazArchives
December 2016
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