This
is fracking.
Western
Pennsylvania Cows in Trouble, Too
In
the midst of the domestic energy boom, livestock on farms near
oil-and-gas drilling operations nationwide have been quietly falling
sick and dying.
24
January, 2013
While
scientists have yet to isolate cause and effect, many suspect
chemicals used in drilling and hydrofracking (or “fracking”)
operations are poisoning animals through the air, water, or soil.
Earlier
this year, Michelle Bamberger, an Ithaca, New York, veterinarian, and
Robert Oswald, a professor of molecular medicine at Cornell’s
College of Veterinary Medicine, published the first and only
peer-reviewed report to suggest a link between fracking and illness
in food animals.
The
authors compiled 24 case studies of farmers in six shale-gas states
whose livestock experienced neurological, reproductive, and acute
gastrointestinal problems after being exposed—either accidentally
or incidentally—to fracking chemicals in the water or air. The
article, published in New Solutions: A Journal of Environmental and
Occupational Health Policy, describes how scores of animals died over
the course of several years.
The
death toll is insignificant when measured against the nation’s
livestock population (some 97 million beef cattle go to market each
year), but environmental advocates believe these animals constitute
an early warning.
Exposed
livestock “are making their way into the food system, and it’s
very worrisome to us,” Bamberger says. “They live in areas that
have tested positive for air, water, and soil contamination. Some of
these chemicals could appear in milk and meat products made from
these animals.”
In
Louisiana, 17 cows died after an hour’s exposure to spilled
fracking fluid, which is injected miles underground to crack open and
release pockets of natural gas. The most likely cause of death:
respiratory failure.
In
New Mexico, hair testing of sick cattle that grazed near well pads
found petroleum residues in 54 of 56 animals.
In
northern central Pennsylvania, 140 cattle were exposed to fracking
wastewater when an impoundment was breached. Approximately 70 cows
died, and the remainder produced only 11 calves, of which three
survived.
In
western Pennsylvania, an overflowing wastewater pit sent fracking
chemicals into a pond and a pasture where pregnant cows grazed: Half
their calves were born dead. Dairy operators in shale-gas areas of
Colorado, Pennsylvania, West Virginia, and Texas have also reported
the death of goats.
Drilling
and fracking a single well requires up to 7 million gallons of water,
plus an additional 400,000 gallons of additives, including
lubricants, biocides, scale- and rust-inhibitors, solvents, foaming
and defoaming agents, emulsifiers and de-emulsifiers, stabilizers and
breakers. At almost every stage of developing and operating an oil or
gas well, chemicals and compounds can be introduced into the
environment. Cows Lose Weight, Die
After
drilling began just over the property line of Jacki Schilke’s ranch
in the northwestern corner of North Dakota, in the heart of the
state’s booming Bakken Shale, cattle began limping, with swollen
legs and infections. Cows quit producing milk for their calves, and
they lost from 60 to 80 pounds in a week and their tails mysteriously
dropped off. Eventually, five animals died, according to Schilke.
Ambient
air testing by a certified environmental consultant detected elevated
levels of benzene, methane, chloroform, butane, propane, toluene, and
xylene—and well testing revealed high levels of sulfates, chromium,
chloride, and strontium. Schilke says she moved her herd upwind and
upstream from the nearest drill pad.
Although
her steers currently look healthy, she says, “I won’t sell them
because I don’t know if they’re okay.”
Nor
does anyone else. Energy companies are exempt from key provisions of
environmental laws, which makes it difficult for scientists and
citizens to learn precisely what is in drilling and fracking fluids
or airborne emissions. And without information on the interactions
between these chemicals and pre-existing environmental chemicals,
veterinarians can’t hope to pinpoint an animal’s cause of death.
The
risks to food safety may be even more difficult to parse, since
different plants and animals take up different chemicals through
different pathways.
“There
are a variety of organic compounds, metals, and radioactive material
[released in the fracking process] that are of human health concern
when livestock meat or milk is ingested,” Motoko Mukai, a
veterinary toxicologist at Cornell’s College of Veterinary
Medicine, says. These “compounds accumulate in the fat and are
excreted into milk. Some compounds are persistent and do not get
metabolized easily.”
Veterinarians
don’t know how long chemicals may remain in animals, farmers aren’t
required to prove their livestock are free of contamination before
middlemen purchase them, and the Food Safety Inspection Service of
the U.S. Department of Agriculture isn’t looking for these
compounds in carcasses at slaughterhouses.
Documenting
the scope of the problem is difficult: Scientists lack funding to
study the matter, and rural vets remain silent for fear of
retaliation. Farmers who receive royalty checks from energy companies
are reluctant to complain, and those who have settled with gas
companies following a spill or other accident are forbidden to
disclose information to investigators. Some food producers would
rather not know what’s going on, say ranchers and veterinarians.
Schilke
ranch cow that has lost its tail, one of many ailments found in
cattle following hydrofracturing of the Bakken Shale in North Dakota
(Photo by Jacki Schilke)
“It
takes a long time to build up a herd’s reputation,” rancher
Dennis Bauste of Trenton Lake, North Dakota, says. “I’m gonna
sell my calves and I don’t want them to be labeled as tainted.
Besides, I wouldn’t know what to test for. Until there’s a big
wipe-out, a major problem, we’re not gonna hear much about this.”
Fracking
proponents criticize Bamberger and Oswald’s paper as a political,
not a scientific, document. “They used anonymous sources, so no one
can verify what they said,” says Steve Everley, of the industry
lobby group Energy In Depth. The authors didn’t provide a
scientific assessment of impacts—testing what specific chemicals
might do to cows that ingest them, for example—so treating their
findings as scientific, he continues, “is laughable at best, and
dangerous for public debate at worst.”
The
National Cattlemen’s Beef Association, the main lobbying group for
ranchers, takes no position on fracking, but some ranchers are
beginning to speak out. “These are industry-supporting
conservatives, not radicals,” says Amy Mall, a senior policy
analyst with the environmental group, Natural Resources Defense
Council. “They are the experts in their animals’ health, and they
are very concerned.”
Last
March, Christopher Portier, director of the National Center for
Environmental Health at the U.S. Centers for Disease Control and
Prevention, called for studies of oil and gas production’s impact
on food plants and animals. None are currently planned by the federal
government.
As
Local Food Booms, Consumers Wary But consumers intensely interested
in where and how their food is grown aren’t waiting for hard data
to tell them their meat or milk is safe. For them, the perception of
pollution is just as bad as the real thing.
“My
beef sells itself. My farm is pristine. But a restaurant doesn’t
want to visit and see a drill pad on the horizon,” Ken Jaffe, who
raises grass-fed cattle in upstate New York, says. Only recently has
the local foods movement, in regions across the country, reached a
critical mass. But the movement’s lofty ideals could turn out to
be, in shale gas areas, a double-edged sword.
Should
the moratorium on hydrofracking in New York State be lifted, the
16,200-member Park Slope Food Co-op, in Brooklyn, will no longer buy
food from farms anywhere near drilling operations—a $4 million loss
for upstate producers. The livelihood of organic goat farmer Steven
Cleghorn, who’s surrounded by active wells in Pennsylvania, is
already in jeopardy.
“People
at the farmers market are starting to ask exactly where this food
comes from,” he says.
This
report was produced by the Food and Environment Reporting Network, an
independent investigative journalism non-profit focusing on food,
agriculture, and environmental health. A longer version of this story
appears on TheNation.com
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