РефератыИностранный языкCoCould The Greenhouse Effect Cause More Damage

Could The Greenhouse Effect Cause More Damage

? Essay, Research Paper


Could the Greenhouse Effect Cause More Damage?


John Harte is an ecologist from the University of California at


Berkley. He is trying to find out whether heat stimulates further trace-gas


from solid or not. He is going to conduct an experiment that will tell him if


the greenhouse effect could start a cycle that would cause the effects to be


worse than already predicted. The experiment will begin December of 1996 and


will run for no less than three years.


Harte has stretched a twelve foot high grid of cables above 300 square


yards of land in a high mountain meadow in the middle of the Colorado Rockies.


The cables are supported by four steel towers, one at each corner of the grid.


Hanging down from the cables are ten infrared heat lamps which are about three


feet long each. This is supposed to simulate what many see as the coming


apocalypse. (global warming) “By 2050, if we decide to load trace gasses -


mainly carbon dioxide – into the atmosphere at our current rate, we can expect


Earth’s temperature to increase by any-where from three to nine degrees. The


Vostok record confirms that,” says Harte.


The grid is divided into ten sections. Each of the ten sections covers


thirty square yards of the meadow. The infarared lamps will heat every other


section by 2.5 degrees. The unheated sections in between allow researchers to


compare the efects of the lamps with the regular state of the meadow.


One time a week, Harte will take gas sam

ples from buckets turned upside


down for ten minutes at a time on both the heated and unheated strips through


fitted nipples at the bottoms of the buckets by syringes, then analyze them


with a gas chromatograph. “We’ll be able to plot any changes in the meadow


very precisely,” says Harte.


Some of these changes could alter the very make-up of the seasons. With a


2.5 degree rise in temperature, snow at high elevations might melt up to two


months sooner. In Colorado that would constitute March as May. As a result,


the soil will dry quicker and will be much warmer than usual when May rolls


around. John Harte says it would be like expanding summer at the expense of


winter.


That means plants that usually start to bloom just as the snow begins to


melt will bloom sooner then the pollinators of those plants can get to them.


That would be harmful to both of the species involved. Harte says that this


project should confirm that people don’t have any time to waste when it comes to


saving this disaster from happening.


In three years, Harte and other researchers will be able to tell whether


or not Global Warming will be the next apocalypse. This apparently is a serious


issue to many environmentalists and ecologists. A lot of time, money, and


effort is being put into this. If this experiment ends up warning us about


what may happen if people keep polluting the atmosphere with certain gasses,


Harte and other researchers working on this project will be commended.

Сохранить в соц. сетях:
Обсуждение:
comments powered by Disqus

Название реферата: Could The Greenhouse Effect Cause More Damage

Слов:561
Символов:3537
Размер:6.91 Кб.