Hydraulic fracturing is a technique to get more oil or natural gas from rock
formations deep underground. It involves
injecting water and a stew of dissolved volatile chemicals into a well under
high pressure. The process fractures
rock, freeing hard-to-get-at oil and gas deposits and increasing the production
of wells. It’s being used in new fields
such as North Dakota and Wyoming with geological strata that have been hard to
drill up to now, and in old fields such as Pennsylvania to squeeze more
hydrocarbons out of formations that had previously been tapped but left a lot
of fossil fuel underground that couldn’t be recovered using older
technologies. California is another state
that has large reserves from older fields that will likely become prime
industry targets due to fracking. These
are primarily in the massive Monterey Shale formation which rests beneath much
of the central portion of the state, including the San Joaquin Valley.
People like me who are concerned about the environment are highly suspicious of fracking for a
number of reasons. First, we want to put
more emphasis on clean, renewable energy sources such as wind, solar, geothermal
and tidal. Fossil fuels are what’s
putting poison into our breathing air and raising global temperatures through
the greenhouse effect of gasses like carbon dioxide and methane. On the whole, we and the earth would be a lot
better off phasing out fossil fuels in favor of their clean alternatives rather
than finding new ways to produce more of them.
Second, we are alarmed about the possibility of toxic chemicals such as
solvents being injected into the ground and contaminating the water table we
use for irrigation and drinking water.
Third, fracking has been associated with earthquake activity in
Pennsylvania. To what extent will
breaking up subterranean rock formations act to destabilize the crust and set
off subsidence and quakes? Is that
something we really want to mess with?
There needs to see a lot more research and provisions for serious safeguards
before we should be the least bit enthusiastic about opening up this Pandora’s box.
No comments:
Post a Comment