Wednesday, June 30, 2010

The Great Lakes And Global Warming Will Result In Drastic Environmental Changes

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.

This area is already dealing with the deleterious affects of invasive species, and something like climate change will only act like fuel to a fire. Twenty percent of the world's fresh water comes from the Great Lakes, it is a major source of this finite resource and any depletion will have massive and widespread repercussions.

Being a huge reservoir for fresh water cannot be downplayed in its importance, but there are other things that the region provides. It is a main player in the waterway shipping, as well as a provider of hydroelectric energy to many surrounding areas. Many tourists flock to its shores, which are also a treasure trove of plant and animal species.

All is not right in the great lakes region, however, as it has been subject to urban development over the past hundred years. This construction and urbanization has led to air and water pollution as well as habitat destruction due to the building up of cities along its shores. All of these issues make something as simple as increased temperatures potentially devastating.

At this point there is still a thin layer of ice that builds up along the lakes at certain times of the year, but with increased temperature the ice will disappear. When the ice leaves, the lakes will evaporate at a higher rate and bring down the water levels.

Water loss has already been occurring and it was found last year the Lake Superior's levels were at their lowest in seventy seven years. If the lakes decrease by the purported additional meter in the future, shipping routes will be severely disrupted and the water itself will diminish in quality due to the concentration of pollutants. The travel industry such as cruises will also be negatively affected.

Efforts are underway to restore the Great Lakes with billions of dollars needed to update the antique sewage systems as well as cleaning up the polluted sediment that already exists. Building up the wetland environments at the edges of the lakes will create a natural water cleanser and impediment to invasive species.

Another issue outside of a lower water level includes more droughts and storms which will create a cycle that could result in increased pollution runoff, virus transmission, as well as oxygen free dead zones within the lake due to the growth of algae.

What does the future hold? It cannot be known with absolute certainty, but models have provided some statistics. Storms may increase by 25%, but with the temperature increases (ranging between two and four degrees), the water levels can drop up to eight feet!

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.

About the Author:

No comments: