These efforts are going beyond just spanning their operational footprint, staff commuting, eating patterns and office fit outs, to diversifying their underlying asset base by backing renewable energy ventures at industrial scale. It's a game changing approach to not just their own business, but also to HOW to do business and so refreshing to see. Their campus energy consumption/generation dashboard stacks up very nicely against a recent visit I did to the CSIRO Energy Research facility here in Newcastle, though the Australian site is miniscule by comparison to the Google renewable energy investment portfolio.
Equally impressive is the extent to which fun and light, humour and whimsy still features in their efforts. Seriously, it's hard not to be impressed. Who wouldn't rather have a slippery-dip than an elevator in their office ;-) (see what I mean at 2m32s in the video below).