Great idea from a link on Treehugger: Vertical Gardening. Basically, it’s a way to fit more plants into a smaller horizontal space, and I can see these racks of plants coating the sides of future skyscrapers. I’m such a dreamer. But wouldn’t that be cool? Imagine the CO2 from the city that all those plants would offset! Anyway, props to Synergy for the concept. I see this going places.