Each week our friends at Inhabitat recap the week's most interesting green developments and clean tech news for us -- it's the Week in Green.

This week an incredible crop of sun-powered prefabricated houses popped up in Washington DC for the 2011 Solar Decathlon, and Inhabitat was on the scene to bring you exclusive coverage of this year's stunning homes! We took a look at all 19 of this year's ultra-efficient projects, we rounded up seven stellar teams set to take the competition by storm, and we'll continue to keep you posted as the results roll in, so stay tuned. We also highlighted several inspiring projects from MIT's $1,000 house challenge, we saw a massive solar LED installation light up the night in Croatia, and we spotted plans for a futuristic floating island paradise at sea.

Green transportation got things rolling this week as Chicago launched a lush green subway car filled with plants, and Edison unveiled an electric version of their X-Prize winning Very Light Car. Two-wheeled transportation took off as well as an all-electric Tron Lightcycle hit the streets for the first time and researchers developed a nylon bike that is as strong as steel using satellite technology. We also took a spin in the 2012 Honda Insight Hybrid and we showcased plans for a Lockheed Stratoliner hydrogen jet that can travel anywhere on earth without refueling.

As September winds down schools across the county are now in session, but if you're still scrambling to pick up a few last-minute supplies don't miss our roundup of 14 green gadgets for back to school and ten solar-powered designs to charge your life. We also saw eco-fashion go high-tech as researchers developed a smart t-shirt that can monitor hospital patients' vital signs, designers created a motion-sensing interactive window display and a Star Wars fan made a remarkably realistic stormtrooper helmet entirely from Adidas sneakers. Finally, we shined a light on a Swedish daycare center's plans to track kids with GPS tracking devices.