Are Apple's clean energy promises just hot air?

In its latest report, Greenpeace has upgraded Apple's marks on clean energy, but says the company's still being vague about how it plans to move away from coal-fired power.

Greenpeace sticks to its guns over iCloud report

Apple's fighting back against claims that its newest data-center is a coal-guzzling blight on the planet - but Greenpeace isn't convinced.

Facebook open sources green datacenter specs

Facebook's finished building its new datacenter at Prineville, Oregon, and is inviting all the neighbors in for a peek. In what it's calling the Open Compute Project, it's opened up the designs and specs for all to see.