
California communities exposed to hazardous dust by a drying lake bed have found themselves at the center of tensions between Arizona and California over how to conserve water along the overtaxed Colorado River.
U.S. Sen. Mark Kelly, an Arizona Democrat facing reelection, wants the federal government to withhold money for environmental cleanup at the Salton Sea until California agrees to use less of its share of the river. He also faulted the U.S. Bureau of Reclamation for not being clear about when and how it will act if the seven Western states that rely on the river fail to significantly lower their use.