The Bureau of Land Management says an extensive environmental study is needed to determine how large solar plants might affect millions of acres it oversees in six Western states — Arizona, California, Colorado, Nevada, New Mexico and Utah. But the decision to freeze new solar proposals temporarily, reached late last month, has caused widespread concern in the alternative-energy industry, as fledgling solar companies must wait to see if they can realize their hopes of harnessing power from swaths of sun-baked public land, just as the demand for viable alternative energy is accelerating. “It doesn’t make any sense,” said Holly Gordon, vice president for legislative and regulatory affairs for Ausra, a solar thermal energy company in Palo Alto, Calif. “The Bureau of Land Management land has some of the best solar resources in the world. This could completely stunt the growth of the industry.” […] The manager of the Bureau of Land Management’s environmental impact study, Linda Resseguie, said that many factors must be considered when deciding whether to allow solar projects on the scale being proposed, among them the impact of construction and transmission lines on native vegetation and wildlife. In California, for example, solar developers often hire environmental experts to assess the effects of construction on the desert tortoise and Mojave ground squirrel. Water use can be a factor as well, especially in the parched areas where virtually all of the proposed plants would be built. Concentrating solar plants may require water to condense the steam used to power the turbine.Read the full article here.