The biological; impacts of fracking to release pockets of natural gas and petroleum from shale formations is still largely unknown.
University of Wisconsin Conservation Fellow, Sara Souther, says there are too many things we don't know about the process, which is largely taking place in western North Dakota.
Wisconsin produces 75-percent of the sand used in fracking worldwide.....much of it in western Wisconsin...and supporters point out that sand production jobs have been a boon to the state's economy. Souther says the fracking procedure uses a a mixture of high pressure water and sand which is injected with a variety of chemicals.
Souther's study identifies one of the greatest threats to animal and plan life is the cumulative impact of fracking which contributes to air, water, noise and light pollution.