The deadline is fast approaching, but if you have a paper and presentation on some unique aspect of sustainability then submit to the NAEP by Sept. 30 for the NAEP's 34th Annual Conference, titled "Making Sustainability Happen: Goals, Practices, and Challenges."
You will be notified in November whether your abstract/paper or presentation topic has been accepted for the conference which will be held May 3-6, 2009 in Scottsdale, AZ.
Here's the link: http://www.naep.org/AM/Template.cfm?Section=2009_Conference1&Template=/CM/ContentDisplay.cfm&ContentID=2279