Dan Rodricks: An artist wandering and wading through the once and future Earth

I try to imagine what it would be like to stand along a river — say, the Jones Falls as it meanders through Baltimore — and look up from the mesmerizing flow to suddenly see a woman draped in a long cape of plastic bottles. What would I think? Did she rise from the river, like some gritty sprite burdened and barnacled with trash? Is she a cast member from a new post-apocalyptic movie: “Mad Max in Waterworld”? Who is this woman in the Jones Falls, bristling with bottles, and each bottle containing a stick with colored string?