First up is the Orsos Island, a floating, solar-powered, resort-style home that combines the best of mainland real estate and luxury yachts. (It never hurts to dream, right?) At the complete other end of the spectrum is the Camper Kart, a pop-up portable home that fits inside a standard shopping cart, and that could potentially give the world's less fortunate a place to lay their heads at night.
ENGADGET: Inhabitat's Week in Green: energy-harvesting toilet, LED lightbulb overhaul and a floating, solar-powered resort home