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Trading Wildlife for Wind Energy
by Kevin Emmerich and Laura Cunningham
At Carlsbad Caverns National Park, New Mexico, Park Rangers cele­brate the ancient but nightly midsummer ritual of Brazilian free-tailed bats exiting the cave in an ecological insect feeding frenzy. Starting in late summer, a similar, less recognized event occurs in Nevada next to Great Basin National Park in a smaller cave providing a roosting colony for one million Brazilian free tailed bats. Once a fertilizer mine in the 1920's, the Rose Guano Cave has now been closed to mining guano by the Bureau of Land Management (BLM), and recognized as an important landmark to the survival of this population. It does indeed seem ironic that the BLM now considers this cave and its bats a resource that must be "adaptively managed".
we thought the junipers were beautiful!) The one percent figure is ridicu­lous. The project area is rich in wildlife and is used by mule deer, prong-horn, and even elk have been observed close to the site. When one of us (Kevin) worked at Great Basin National Park, the park biologist thought golden eagles in Spring Valley were like "chickens" and it was true. On any day, a visitor could see at least two or three from the highway. Raptors commonly glide over the valley and surrounding mountains: peregrine falcons, ferruginous hawks, and even bald eagles, which are common winter residents. How tragic that the BLM has made protecting this sym­bol of the United States a second priority to subsidizing inneficient en­ergy boondoggles (accord-
In January, 2006, Sprrng Valley Wind LLC began testing a section of the remote Spring Valley, 12 miles from the boundary of Great Basin National Park, to construct 8,500 acres of 400-foot-tall wind turbines. In their best case scenario, 80 of these turbines would sell 149 megawatts of electricity to Las Vegas where green en­ergy may someday provide power to the parking ga­rage lights of the Mandalay Bay resort and casino.
ing to the California Energy Commission, wind farms there have put out about 25% of their maximum rated capacity in the last few decades), the Wind energy developers claim that the new design of tur­bines prevent raptor mor­tality, yet the following video of a vulture collid­ing with a turbine in Spain tells a more accurate
story: http://www.windaction.org
/videos/23904.
Wind energy developers consistently underplay the
Aside from being approximately one mile from the Rose Guano Cave, these huge wind turbines would include large "lay down" areas" of bladed habitat for construction of turbines, 28 miles of new 68-foot-wide roads, fiber optic line trenches, plus microwave towers, substations, mainte­nance facilities and employee parking lots. Each turbine foundation would have 120 tons of cement. Cement, of course, needs water and the peak usage of water per construction would be 700,000 gallons or about 25 acre feet. This area is famous for outsiders seeking to waste water. The Southern Nevada Water Authority hopes to pipe a significant amount of the groundwater of this region to the casinos and housing developments in Las Vegas, making the only water available a temporary lease of wa­ter rights from the LDS Church. The project would be located next to the Swamp Cedar Area of Critical Environmental Concern, a rare habitat with spring wetlands and junipers growing on the basin floor. The BLM admits that placing large, heavy concrete foundations for turbines would draw the water down and away from the springs.
In spite of all these impacts, BLM has assured us that only one percent of the total land area would be disturbed. (They also found it amazing that
impacts large wind farms would have on sage grouse by saying that few individuals die in rotor collisions, in a clever attempt to deflect the larger impacts of wind developments fragmenting vast patches of old-growth sagebrush habitats needed by the birds for breeding. Roads, foundation pads for turbines, herbicide treatments, all have documented negative effects to sagebrush stands and sage grouse populations. Due to the con­troversy of both fossil-fuel and renewable energy development across the sagebrush sea, the Fish and Wildlife Service is again being forced to re­view the petition to list the species as federally threatened. Pygmy rab­bits, requiring tall, dense sagebrush stands for cover, were found on the site. The BLM review stated that they would have to move.
Bat Conservation International studies show how bats may even be at­tracted to wind turbines as possible new perch sites and insect foraging areas, but make deadly collisions with rotors, both slow- and fast-mov­ing. Pressure from rotating turbines has been found to expand the lungs of bats, causing death.
We stood on the side of the highway on a cold fall day with BLM person­nel, looking across the wide basin that would be studded with steel tur-
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