Inhabitat's Week in Green: cardboard bicycle, robo raven and a steampunk Lego ship

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. Summer is finally upon us, and polluting companies are feeling the heat as President Barack Obama announced a groundbreaking climate action plan this week that calls for cutting CO2 emissions and building more resilient communities in the face of climate change. Meanwhile, innovators around the world are continuing to tackle some of our biggest challenges....