 It's 12 noon, and from Maine Public Radio, this is Here and Now. I'm Robbie Feinberg. In this hour, the Supreme Court ruled last week that cities have the right to enforce bans on people sleeping outside in public places. The case will have huge implications in California, where nearly a third of the country's homeless population lives. With a hotter climate in the future, sales of air conditioners are expected to soar. One startup is looking at how to reduce the electric burden of A.C.,