USGS: Climate change could limit yucca’s range FLAGSTAFF, Ariz. (AP) — Researchers say a giant yucca known for its distinctive shape could disappear from 90 percent of its current range by the end of the century. Joshua trees are found in the desert grasslands of the Mojave Desert in Arizona, California, Nevada and Utah. In a new study, U.S. Geological Survey researchers say that climate change in the Southwest could restrict the yucca to … Read more on FOX 11 Tucson