A judge this week denied the city of Phoenix’s request for more time to clear the region’s largest homeless encampment. Save Our Schools Arizona delivered a memo to the state’s legislative leadership, governor, treasurer and superintendent of public instruction demanding a plan to deal with what it calls massive overspending on school vouchers. The U.S. government wants to change how it manages Glen Canyon Dam in northern Arizona to keep a disruptive invasive fish from spawning in its waters and harming protected species. Plus the latest business, tribal natural resources, metro Phoenix and science news.