Greenpeace just released its latest snapshot of major corporation's impact on the planet with IT data centers the main target. The 35 page report [ PDF link ] details just how much energy is required to run the massive centers powering the so-called cloud. It's huge according to Greenpeace, consuming 1.5%-2% of the world's total power consumption and growing at a rate of 12% a year. Somewhat surprisingly Greenpeace sort of applauds the virtues of living in a massive data cloud, pointing to the advent of the smart grid and increased amount telecommuting. Even digital streaming music gets props for having a smaller carbon footprint than physical media. But this is Greenpeace and so there has to be some finger pointing and letter grading. The main purpose of this report is to reveal top company's impact on the environment by mainly examining their dependency on fossil and nuclear fuels rather than using renewable sources. However, even Greenpeace notes that these numbers might not be exact since they were calculated without all the facts. Simply put, these ten company's didn't deluge this info; Greenpeace pieced together their data. It's a bit dirty itself, actually.