I think your topic list is spot-on. I work at Intel in the IT organization and we have an IT Sustainability team that is chartered at looking for ways to use IT to do exactly what you mention in your opening paragraph: "...how IT can play a role in advancing the cause.." We have build a framework to get us started and would love your thoughts on our method: Building a Long-term Strategy for IT Sustainabiltiy/
http://download.intel.com/it/pdf/Building_a_longterm_sustainability_strategy.pdf