Power management tools are the low-hanging fruit when it comes to cutting carbon emissions out of the computing world — 90 percent of energy-saving tools on home PCs are disabled, and almost half of PC users don’t know what this stuff is or how to use it. Verdiem, a Seattle-based startup that has been focused on selling enterprise power management software, has just launched a free, easy-to-use download called Edison that could help out the rest of us. Microsoft is asking Windows users to download it, HP already has a HP-branded version for its businesses users, and the nonprofit Climate Savers Computing Initiative is calling for 10 million downloads in a year. The company is also backed by investors like Kleiner Perkins and the Westly Group. What more convincing do you need? Read the whole story and check out screenshots on Earth2Tech.com.