WENDOVER, Utah | By SAM METZ and BRADY McCOMBS (AP) — The glistening white salt of the world famous Bonneville Salt Flats is shrinking near the Utah-Nevada line. The prehistoric lakebed has long been a mecca for daredevil speed racers, as well as a backdrop for famous movie scenes and destination for selfie-seeking tourists. Concerns are mounting about the future of the treeless expanse of salt crystals and yet another study has been launched as researchers try to pinpoint the cause and solution. They know a century of mining a potassium-based salt called potash has played a role and are also trying to assess how racing, tourism and climate change factor in.

© Michael Pätzold / Creative Commons BY-SA-3.0 de