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 President Barack Obama set the tone for the coming year in his 2013 State of the Union address, which advocated 3D printing and called for a speedy transition towards renewable energy to help combat climate change. The future of clean tech is already looking bright, as the world's solar power capacity just hit a record 101 gigawatts, and researchers found a new way to charge batteries by harvesting ambient electromagnetic waves from thin air. Speaking of batteries, a new lithium-ion battery developed by USC utilizes nano-sphere technology to store three times more energy while cutting charge time down to just 10 minutes. Clean tech is invading the kitchen as well -- behold the Biobot, a tabletop device that converts waste cooking oil into biodiesel.