I’m sorry if this comes across as harsh, but #2 is a lame idea. It sounds like something straight out of ‘The Office’. It is, however, a noble cause. I believe in promoting the alternatives as a method of highlighting wastefulness. Perhaps a mini-campaign on the use of PDF printing instead of printing to hard copy, the introduction of various kinds of recycling options in the kitchen / office… Little notes on the front door about being the last one out and thus switching the lights out. It’s easier to change by action than hearing someone ‘disseminate factoids’.