I'm intrigued to pick up his new book, Whole Earth Discipline: An Ecopragmitist Manifesto. In this video, Brand says squatter and shanty towns in developing nations are good things for saving the planet. Poor farmers leave the country, the country recovers. These farmers in the city create jobs and have fewer kids, since kids in the city (vs. the country) or not as beneficial, so world population will climax at 8 billion in 2050 then drop sharply. Maybe this is true--it's an inteesting take on something I think we most think of as a bad phenomenon. I'll have to read more so I can speak better on it, though. He also is a proponent of geneticlly modified plants that can produce more food per acre, thus taking up less room and allowing for more nature (ha), and plants that are no longer annuals but perennials, thus being no till (which means less carbon released into the air, and less topsoil blown away).