When
most people think about a biological hot spot—a mother lode of
species—the Amazon may come to mind, along with certain regions in West
Africa and Southeast Asia. Hardly anybody thinks about the Appalachians.
But more species of salamanders and freshwater mussels live in the
streams and forests of this region, stretching from upstate New York to
northern Alabama, than anywhere else in the world. Those temperate,
deciduous forests are more diverse than anywhere else in the world, too, apart from those in central China.
Unfortunately,
seams of coal also run through the Appalachian Mountains, often buried
deep within the range. To extract it, coal companies have been literally
blowing the tops off of these mountains in a practice called
mountaintop removal coal mining. Not only does this method change the
landscape and leave swaths of barren rock in place of forested
mountainsides, but the mining companies also take the millions of tons
of dynamited rock and dump them in the valleys next to the decapitated
mountains. These valleys usually have streams in them, and those streams
are where the salamanders, mussels, and other freshwater species of the
region live. As you might imagine, these animals don’t love having
chunks of mountain dumped on their habitat.
A new study
confirms that salamanders, in particular, fare poorly in these streams.
Researchers from the University of Kentucky visited sites where mining
companies had dumped the so-called “overburden” (or “spoil”) and looked
for salamanders just downstream of the dumped mountain debris, comparing
the abundance of five salamander species in those streams with nearby
streams that hadn’t been disrupted.
Overburdened
streams averaged about half as many species of salamander, and far
fewer individual salamanders, as the undisturbed streams. Across 11
streams with mountain rubble, researchers found just 97 salamanders,
compared with 807 salamanders in a dozen control streams.
How
do mining companies get away with it? The Surface Mining Control and
Reclamation Act of 1977 requires miners to certify that these sites have
undergone restoration and reclamation. The sites in this study were
mined in the late 1990s and certified as “reclaimed” in 2007 by the
Kentucky Department for Natural Resources. But all that really means,
said Steven J. Price, a University of Kentucky professor and coauthor of
the paper, is that the mining companies “were able to get some
primarily nonnative grasses to grow on these sites,” preventing some
erosion. “It’s not as if this is a highly diverse central Appalachian
forest anymore,” he said.
As
expected, being smothered under a broken mountain also wrecked the
water quality of these mountain streams. Specific conductance—a general
measure of the amount of electricity-conducting particles in water—was
about 30 times higher in overburdened streams, and concentrations of
sulfate ions were 70 times higher. Satellite imagery also showed that
these streams had only about a quarter tree cover, compared with the
thickly forested control streams.
With
so many changes to the habitat, it’s hard to say for sure what exactly
is causing the decline in salamanders, said Price. “The water quality
issues seem to be really important,” he said. Two of the salamander
species studied—the red salamander and the southern two-lined
salamander—live in the forests during the non-breeding season, so
deforestation would also hit them hard.
The
practice of mountaintop removal began almost 40 years ago in Kentucky
and West Virginia and has since spread to Tennessee and Virginia,
destroying 450,000 acres of Appalachian countryside without much serious
consideration of the effects on wildlife. “The study was long overdue,”
said Tierra Curry, a senior scientist at the Center for Biological
Diversity. “It makes sense that amphibians would be very sensitive to
the water pollution from surface coal mining. It increases the saltiness
of the water; it puts metals into the water.” Nor is it just
stream-dwelling animals that suffer, she added. “In the last couple
years, there’s been a ton of science coming out about health impacts of
mountaintop removal coal mining on human communities,” she noted,
including increased rates of lung cancer and heart disease.
“I
love the Appalachian Mountains,” said Curry, who grew up in a
mountaintop removal area of Kentucky. “I think that they’re the most
beautiful place on Earth, and as a scientist, I’m aware of how precious
they are. It’s really heart-wrenching to see the land that I love being
blown to bits.” She called Appalachia a “sacrifice area” to satisfy the
nation’s ravenous hunger for coal. “It wouldn’t happen anywhere else in
the country,” she said. But the poverty rate in some parts of the region
is more than twice the national average, and the people there lack the
political clout to stand up against the powerful forces behind the coal
industry.
Curry
detailed, with palpable frustration, the loopholes that have allowed
mountaintop removal mining and the dumping of overburden on streams to
continue. For instance, the Clean Water Act should protect these
streams. But a 2002 regulatory change under the Bush administration
specifically exempted the dumping of mining waste.The Endangered Species
Act should protect species such as the hellbender, the giant
salamanders that are quickly disappearing from their Appalachian
habitats. But in 1996, said Curry, the U.S. Fish and Wildlife Service
basically gave mining companies a free pass, requiring them only to meet the SMCRA reclamation requirements. “It’s a ridiculously broad document,” she said.
What will it take to stop mountaintop removal mining? In 2013, more than 20 members of Congress introduced the Appalachian Community Health Emergency Act,
to “place a moratorium on permitting for mountaintop removal coal
mining until health studies are conducted by the Department of Health
and Human Services.” But a similar bill died in committee in 2012, and
the bill-tracking service GovTrack.us gives this one just a 4 percent chance of passing.
A coalition of groups called iLoveMountains.org continues to fight mountaintop removal mining. Getting individual investments out of coal, and fossil fuels generally, can be effective. But be aware that divesting is complicated for the individual. Some cities and towns outside the region have also recently passed policies
preventing power companies from buying coal or energy that comes from
mountaintop removal. But big coal has well-paid lobbyists and plenty of
campaign contributions to protect its privileged status. Against that
kind of power, the only force strong enough to make a difference is an
outcry from people everywhere that destroying a global heritage like the
Appalachian Mountains is simply wrong.
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