Project #95414 - Discussion board thread- Earth Science in Action- Reply posts

You are required to reply to at least 2 other classmates' threads. Kenneth Jones  and Andrew Covey. Each reply must be at least 100 words and must add substantially to the conversation. All posts must adhere to current APA format and be grammatically/syntactically correct, neat, organized, professional, and sufficiently academic in content.

 

 

Kenneth Jones

 

 

In this article, “Climate change is moving mountains” in science dailies web site http://www.sciencedaily.com/news/earth_climate/geology/, one can see a great example of how climate change is impacting the earth today. This study, written at the University of Cincinnati and led by geologist Eva Enkelmann, brings to light how rapid movement of tectonic plates can happen. Their research in the North American St. Elias Mountain Range shows that climate changes are closely related to the increased internal movement of the mountain range (Cincinnati, 2015).

This study showed that today’s glaciers are wet-based, which makes them move more quickly and forcefully than the glaciers of old, which did not move. This causes erosion in the mountains at a much more rapid pace today, with the eroded material moving into the Gulf of Alaska. The tectonic forces (internal plates moving toward one another) continue to move toward Alaska, where they get pushed underneath and the sediment on top is piling up above the Yakutat plate (Cincinnati, 2015). Enkelmann found that the process of glacier movement, coupled with internal buildup of the tectonic plates, would produce catastrophic events. This data is important as it shows the potential for large earthquakes and tsunamis, like the ones that occurred in 1899; both earthquakes had a magnitude of over eight producing large tsunamis. These two consecutive massive earthquakes raised the shoreline in the area approximately 45 feet.

This article was chosen for its study in climate changes and how it affects the earth. It is of particular concern when the study shows that the shoreline in Alaska raised 45 feet in an instant, due to the two large back-to-back earthquakes in 1899. The Catastrophic Plate Tectonics theory certainly seems to be stronger based on this research, though this was not the intent of this study. It would seem that through two massive earthquakes, the earth changed instantly, much the same as in Genesis 7: 11, when God broke open the fountains of the great deep.

Studies like this one are important. Scientists can gain information into how to better prepare for large disasters in the future, as well as give mankind an insight as to how the planet was shaped by such mega events. This particular study of climate change showed how major land mass can change with the rising and falling temperatures, altering the landscape into what mankind sees today.

Word count 393

Reference

University of Cincinnati. (2015, November 5). Climate change is moving mountains: Research points to strong interaction between climate shifts, increased internal movement in the North American St. Elias Mountain Range. ScienceDaily. Retrieved November 18, 2015 from www.sciencedaily.com/releases/2015/11/151105121523.htm

 

 

 

 

Andrew Covey

 

The title of the article in which I read was New Research Shows La Niña is not Helping Hawai'i's Rainfall, Groundwater and can be found at http://www.sciencedaily.com/releases/2015/11/151112171100.htm. It was published by the University of Hawaii at Manoa. The article speaks of the decrease in rainfall in the State of Hawaii, the reasons for the decrease, and briefly how it relates to the supply of groundwater. After reviewing rain guage data from around the state from 1956 to 2010, it appeared that there was a shift in the amount of rainfall starting in 1983 from the 50 National Weather Service rain guages looked at. During this year, the state went from seeing an excessive amount of rainfall in previous years to having a shortage in rainfall. Additional research was performed by looking at climate data and weather data where it was determined a dramatic shift in a subtropical high-pressure system had occurred. In addition, an intense jet stream along with the shift in the high-pressure system proved to effect rainfall during those later La Nina years.

 

Due to the remoteness of the islands, groundwater is a necessity for not only tourism, but most importantly survival. By better understanding the cause for drought, it could certainly aid in being able to better predict future demand. If it appeared a long time drought could take place, water consumption could be restricted to the point it would not be necessary to find outside sources. Alternative methods of obtaining or purifying water could prove to be extremely costly and could ultimately destroy the state’s economy due to an increase in cost.

 

As a whole, this information does not necessarily impact mankind. It is however extremely important to the residents and visitors of Hawaii. Should the supply of groundwater drop to critical levels, new innovative and cost effect methods of purifying or obtaining water would need to be found to ensure the survival of the people.

 

This was an extremely interesting article as it reinforces the need for self sustainability. Although I have never been fortunate enough to visit the State of Hawaii, I have had the opportunity to speak with life long residents about their economics. This particular article brought into perspective how an item such as water in which most of us see as an easily accessible item can be a luxury to others.

 

Reference

 

University of Hawaii at Manoa. (2015, November 12). New research shows La Niña is not helping Hawai'i's rainfall, groundwater. ScienceDaily. Retrieved November 19, 2015 from www.sciencedaily.com/releases/2015/11/151112171100.htm

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Due By (Pacific Time) 11/23/2015 02:00 pm
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