Saturday, April 7, 2007

Jess's Newspaper Article on Global Warming & Lakes

Below is Jess's article for the assignment here.

Lake Winnipesaukee – Five Centuries Ago
By Jess N.
May 9, 2507


Recent studies show that at one time our deserted Lake Winnipesaukee was a great vacation place for people fleeing from the summer heat waves from the East Coast. People left cities such as New York City to vacation at such a beautiful area.New York City was once a densely populated, multi-cultured, vibrant city before the ocean level rose and took over the city. Nowadays, we recognize that Lake Winnipesaukee is anything but a safe haven from heat. It is hard to believe that only five hundred years ago, the lake was a vacation paradise.
Today, in 2507, there is little life around the area known as the Lakes Region. Because of the much high temperatures today, photosynthesis has slowed down because the nutrients that once existed in the water couldn’t move to the surface. At the time when four seasons occurred each year, Winnipesaukee would experience spring overturn normally at this time during the year. Spring overturn was when the strong vertical movements delivered dissolved oxygen from the surface water to the bottom of the lake. This released nutrients which moved to the surface. May temperatures about five hundred years ago at Lake Winnipesaukee averaged at about 55°F. On May 5 this year the recorded temperature was 83°F.
Spring overturn was followed by fall overturn, which no longer exists. The purpose of fall overturn was to cycle the nutrients which caused a burst of primary productivity. Fall overturn stopped occurring when the temperature of the world rapidly increased during the mid 22nd century. Without the decrease of temperatures anymore, a permanent thermocline formed and prevented mixing between the warm surface and the cool bottom. The thermocline has been sustained for several hundred years. Life began to disappear within the lake because the thermocline prevented nutruients from growing.
The tragedy known as global warming increased the temperature of this lake and stopped its natural cycle. No more vacations are taken to Lake Winnipesaukee. Instead the area is uninhabited. Maybe in another five centuries, Lake Michigan will even become a vacated terrain.

1 comment:

Anonymous said...

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