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. As the nuclear crisis at Japan's Fukushima power plant continues to devastate the region and one reactor sprung a leak releasing tons of radioactive water, this week Inhabitat reported that green algae could play a critical role in cleaning up the spill. We also brought you Japan's latest radiation-detecting robot , and we took a look at how fallout from the controversial crisis is affecting energy policy around the world -- China is cutting plans for future reactors in favor of solar fields while Germany may trade 17 nuclear plants for wind farms. In other news, green transportation went from the soaring skies to the deep blue sea this week as we looked at NASA's self-healing "magic skin" that will protect planes from lighting, and Sir Richard Branson unveiled a streamlined eco sub that will explore the