Pros:
Shale-gas
emits half the CO2 per unit of energy compared to coal.
Fracking is
making coal extraction unprofitable and so reduces CO2 emissions.
Makes termal
power plants close.
Generates
more jobs.
Energetic independence
of countries can be reached using fracking techniques.
Cons:
Earthquakes
generated by the injection of high pressure water in to the underground.
Contamination
of wells water.
Possible
methane releases to the atmosphere.
Not as
clean as renewable.
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