Last fall, ASU’s School of Sustainability teamed up with Verizon to offer a groundbreaking new course — the Smart City and Technology Innovation Challenge. Students spent the semester learning about the latest in smart technologies, and brainstorming how they could be applied to cities for the benefit of urbanites. They molded their ideas into business propositions, which were carefully considered for generous grants from Verizon. Now, the challenge’s three winners have been announced. First-place winner Alex Slaymaker's waste-reducing proposition, PHXflow, is a vibrant online waste networking platform created for small- and medium-sized businesses interested in selling, donating, purchasing or exchanging unwanted materials with other businesses in the Phoenix metropolitan area. Christopher Frettoloso, the second-place recipient of $2,000, conceived BetR-block, LLC — a manufacturer of sustainable, low-cost building materials from recycled paper and other cellulosic materials. Alex Cano is the challenge’s third-place recipient of $1,000 and the innovative mind behind BISTEG-USA. His proposition tackles the aesthetic concerns associated with current solar technologies, which are often relegated to out-of-sight places like rooftops.