Google reportedly became "carbon neutral" in 2007.
Google maintains at least a couple of dozen data centers and perhaps more with quite a few spread around the world in locations that perhaps have no access to "green energy". But kudos to Apple for keeping it in mind as they build new centers.
Apple owns the largest private clean energy facility in the US. Where Google depended on Duke in NC to get around to providing green energy Apple built out their own solar farm.
The difference between Google and Apple is when Google touts another $x for y MW in renewables it's a contract for purchase from a utility. When Apple does so it's often actual new capacity it has built out on its own property.
Apple generates far more green energy than Google does.