Wednesday, June 30, 2010

The Great Lakes And Global Warming Could Result In Drastic Changes To The Entire Region

The Great Lake of Chicago
By Adriana Noton

A century worth of human innovation including the industrial revolution can wreck havoc to any environment that it comes into contact with. With leaps in scientific measurement we can now look at the world in completely new ways and a side effect of that is being able to look into the future with some certainty. Climate change is a hot topic along with its effects. The Great Lakes and global warming is a situation that will significantly change an entire region.

Already dealing with the onslaught of invasive species, global warming will only add additional pressure to the Great Lakes region. These vast reservoirs of fresh water account for twenty percent of the total amount of fresh water on the planet, a resource that will become scarcer in the future.

The importance of the region cannot be downplayed. Outside of the manufacturing of drinking water, it is also a huge producer of hydroelectric power, is a thoroughfare for shipping routes, as well as being a tourist attraction. A variety of species, both plant and animal, make their home along the shore and within the lakes themselves.

With all of these positives, there is a flipside to use and land development including air and water pollution and urban encroachment into habitats. Because of these issues, the region is more susceptible to being affected by global warming. Something as innocuous as climate change can reap disastrous results.

Increasing temperature will melt the ice cover that, at this point, is already quite thin along the lakes. No cover will increase the overall evaporation of the lakes and decrease overall water levels.

Lake Superior was at its lowest levels in seventy seven years as recently as last year and the future could bring another meter of water loss. The effects of low water levels will impact shipping routes and will concentrate the pollutants left behind which will damage overall water quality, as well as the tourism industry such as cruises.

At the present, there are preliminary measure being discussed to restore the grandeur to the Great Lakes, but it will require billions of dollars over a number of years. Updating antiquated sewage treatment systems and cleaning up the already polluted sediment will be coupled with a natural buildup of wetlands that will act as a natural filter and barrier from invasive species.

There are more repercussions from climate change other than decreasing water levels and that includes an increase in the number and ferocity of storms and drought periods. In response to these weather extremes viral transmissions can increase and pollution runoff may be increased. Within the lakes there may be more dead zones, places where there is no oxygen because of algae overgrowth.

The predicted future statistics are not encouraging. The temperature itself will be increased two to four degree centigrade with lake levels falling anywhere from 1.5 to 8 feet! Weather wise, the increase in storms may be 25%.

Making a better tomorrow really does mean being better today. Allowing for proactive measure while being realistic about future effects can mean that humans can restore luster to the Great Lakes region.

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