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Unit 5: Hydraulic Fracturing
Transcript of Unit 5: Hydraulic Fracturing
How do Fossil Fuels get their name?
How do they form?
What is hydraulic fracturing and why is it controversial?
TPS - Think Pair Share
With your neighbor, brainstorm a list of as many types of energy as you can (ie. coal).
You have 3 minutes!
Actually a mixture of gasses.
Smaller amounts of propane and butane.
As a gas, it is the most difficult fossil fuel to transport
One of the biggest advantages in natural gas is the relatively small amount of pollution produced by burning it.
The only two waste products are carbon dioxide and water vapor.
A controversial technique used to extract natural gas from rock formations (such as shale) that are not very permeable.
Fracturing has become an increasingly popular tool for extracting natural gas, especially with the discovery of the methane-rich Marcellus Shale.
History of Fracking
Hydraulic fracturing was first employed experimentally in 1947 in the Hugoton oilfield in Kansas.
Water laced with chemicals is pumped down to fracture the shale and releases the gas, which can be pumped up.
Major Issues with FRACKING
Millions of gallons of water are needed to “frack” the well.
Flowback Water Pollution
Drinking Water Contamination
The water that returns back to the surface.
Contaminated with minerals, fracturing fluid chemicals, and natural gas itself.
Water Trucking Containers
Contaminated water can leak into aquifers, infiltrating wells and drinking water supplies.
These chemicals include carcinogens and endocrine disruptors.
Water from a rural well in PA.
Section 322 of PL 109-58 amended the Safe Drinking Water Act to exempt all fracturing fluids except diesel from EPA regulations.
Research & T-Chart
There is a debate whether or not to allow fracking in New York state.
Imagine you are on a City Coucil trying to decide whether or not to allow a company to begin fracking in your town.
1. As a group, read at least THREE articles.
2. Use a piece of chart paper to create a T-chart of pros and cons of allowing fracking.
3. Put your names on it and turn it in!
What to do...