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.
When the Seattle Seahawks and New England Patriots take the field for the Super Bowl this evening, it will be one of the most widely watched sporting events in the world. And it will also be one of the greenest. The game, which will take place at University of Phoenix Stadium, will be the first Super Bowl host to light its stadium entirely with LEDs, cutting energy use by 75 percent. In other news, Spain announced plans to install the world's first streetlight system that's powered entirely by solar and wind energy. An early prototype shows lampposts with small solar panels and vertical-axis wind turbines attached to the top.