Bloomberg notes that Apple has posted the 2012 update of its environmental policy pages, noting that the company has now achieved 100% renewable energy usage at all of its data centers. On a worldwide basis, the company's corporate facilities are now running on 75% renewable energy, up from 35% just two years ago.

Our goal is to power every facility at Apple entirely with energy from renewable sources — solar, wind, hydro, and geothermal. So we’re investing in our own onsite energy production, establishing relationships with suppliers to procure renewable energy off the grid, and reducing our energy needs even as our employee base grows. Our investments are paying off. We’ve already achieved 100 percent renewable energy at all of our data centers, at our facilities in Austin, Elk Grove, Cork, and Munich, and at our Infinite Loop campus in Cupertino. And for all of Apple’s corporate facilities worldwide, we’re at 75 percent, and we expect that number to grow as the amount of renewable energy available to us increases. We won’t stop working until we achieve 100 percent throughout Apple.



The move to 100% renewable energy for its data centers represents the completion of a commitment the company made last May to address criticism from Greenpeace over its energy usage. While Greenpeace's ratings were based on erroneous calculations and assumptions, Apple took the opportunity to make more public statements about its energy usage and plans.

Apple estimates that its carbon footprint for 2012 included 30.9 million metric tons of greenhouse gas emissions, with 98% of that total directly related to the life cycles of its products. The total represents a 34% increase over the company's 2011 estimates , but Apple notes that recent increases have been driven primarily by growth in its sales, with emissions per dollar of revenue decreasing by 21.5% from 2008 to 2012.