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 Inhabitat saw the world's first solar-powered aircraft soar through the night sky as it successfully completed its first 24-hour flight. We also took a look at the 15 ultra-efficient cars currently vying for the Progressive Automotive X Prize. Electric vehicles also made the headlines left and right this week as K
