In terms of reducing the environmental footprint of the office specifically, I haven't seen too much other than having separate bins for different rubbish so that it all ends up in the right place.
Graduate, Canberra
Nearly every presentation mentions climate change, though I can't specifically name any initiatives, my department doesn't really deal with that many emissions
Graduate, Canberra
Company makes it easy to recycle waste as much as possible, and vast majority of work is digital reducing paper waste
Graduate, Melbourne