You have probably heard about CO2 and the conference being held these days in Copenhagen (1).
You have probably heard about the goal of carbon neutrality at the Wikimania conference in Gdansk in July 2010 (2).
You may want to discuss the basic and perhaps naive wishes I have written down on the strategy wiki about paper consumption (3).
Do we have an idea of the energy consumption related to the online access to a Wikipedia article ? Some people say that a few minutes long search on a search engine costs as much energy as boiling water for a cup of tea : is that story true in the case of Wikipedia (4) ?
How about moving the servers (5) from Florida to a cold country (Alaska, Canada, Finland, Russia) so that they can be used to heat offices or homes ? It might not be unrealistic as one may read such things as "the solution was to provide nearby homes with our waste heat" (6).
(1) http://en.wikipedia.org/wiki/United_Nations_Climate_Change_Conference_2009 (2) http://meta.wikimedia.org/wiki/Wikimania_2010/Bids/Gda%C5%84sk#Environmental... (3) http://strategy.wikimedia.org/wiki/Proposal:Environmental_policy_for_paper_p... (4) http://technology.timesonline.co.uk/tol/news/tech_and_web/article5489134.ece (5) http://meta.wikimedia.org/wiki/Wikimedia_servers (6) http://www.greenercomputing.com/news/2009/12/08/giant-data-center-heat-londo...