Grist: Earlier this year, I wrote about a story in San Francisco in which a landlord was trying to evict several tenants over what is a pretty common sight in the citys Chinatown: laundry, air-drying outside of apartment windows. The attempt was unsuccessful but it got people wondering. How was it possible that anyone could forbid something as energy-efficient as letting the sun a huge ball of incandescent gas that just hangs out in the sky, free of charge dry peoples laundry? That wondering can...