What a whirlwind. Whoa. Last Tuesday morning, I left on a road trip with a friend to attend another friend's wedding--in middle-of-nowhere western Wisconsin. The wedding was this past Saturday. With that many miles to travel, we chose to extend a bit on both ends to visit friends, family, and make an urban-agriculture tour of it. Starting pre-wedding, last Wednesday, we visited Growing Power in Milwaukee. Imagine greenhouses growing food all winter in Wisconsin. Not only that: imagine that underneath two shelves of greens, in the middle of the greenhouse they're raising 10,000 tilapia in a single tank-- made out of simple materials like 4x4s, plywood and plastic liner. It's brilliant: with a single pump, they're able to fertilize the plants with fish waste and purify the fish water via the plants. Closed-loop. After the wedding-- in rural farm country-- we headed back for the city. In Chicago, we swung by a Chicago Growing Power site...