Judging by the tone in here, I'm assuming this is going to get downvoted, but here goes.
While you may or may not like Greenpeace's tactics, or their singling out Apple and not Lockheed, Union Carbide or whichever other corporation you'd like to name, it seems there's something rather important that's being overlooked here.
Apple, together with Google, is driving the move to the cloud. This is not something that was completely necessary, in my humble opinion, but a conscious business choice on Apple's part. It takes a whole of energy to move things back and forth over the Internet, at least compared to having it stored locally, so where that energy is coming from is important.
Now, while one might point out that no one's being forced to use cloud services, by Apple or any other company, Apple's size and their legendary insistence on us doing things the way they want us to, by way of making "their" solutions (App Store, iCloud etc etc) more prominent than the alternatives, they have a role to play here.
Apple is a major player in consumer electronics, and Greenpeace has always been about raising awareness, in one form or another. This means that if they get Apple to change the way it's going about something, it affects the carbon footprint of A LOT of products and users.
And let's not forget, Apple didn't move to BFR free components, lower power consumption parts (on the desktop side anyway) because they're good people who care about people drowning in the Maldives or the coral reefs dying. They did it because they're a company that cares about bad PR and the effects it has on their profits. They changed things in large part because of organizations like Greenpeace.
Oh and all of you "IT'S A HOAX & AL GORE IS FAT!1!1!!!" types: Go back to sleep, we'll wake you when your house is under water.