New York Times: A National Park Service official has warned the Bureau of Land Management that approving dozens of solar power plants in southern Nevada could dramatically impact water supplies across the arid region. An estimated 63 large-scale solar projects are proposed for BLM lands in the region, and the plants are expected to use a large amount of groundwater to cool and wash solar panels, according to the Feb. 5 memorandum sent by Jon Jarvis, director of the Park Service’s Pacific West Region, …