I wanted to share this TED video I found over at Mammoth. Its of Magnus Larsson first discovered on BLDGBLOG discussing his massive landscape project proposal to stop desertification in the Sahara. His idea: using balloon molds injected with bacteria that will eventually solidify sand into sandstone, creating a wall system and built in ecosystems and habitats that stretch across the continent. And, he believes its very possible, so do we.