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.
Green transportation also received a big boost this week as Stanford researchers revealed a way to transform raw sewage into rocket fuel. Meanwhile, Santiago Calatrava heralded a new era for efficient transportation as he unveiled his awe-inspiring new rail station for the Denver International Airport. And with the summer heat embroiling cities across the states, we're daydreaming of slipping away to sea aboard this sleek solar Delta yacht.
In other news, wearable technology is changing the way we change our underwear -- odor-absorbing astronaut undies have finally hit the shelves. We were also impressed by a new breed of 3d-printed textiles that may one day make needles and threads obsolete. Finally, in the spirit of summer this week we showcased 6 innovative designs that harness the power of play - from energy generating soccer balls to water-pumping merry go-rounds.