My course "ICT Sustainability" COMP7310 is available to Australian National University postgraduate students in first semester 2012. The course is run during the standard ANU semester time, but is entirely on-line, with no attendance at lectures or tutorials required (and no examinations).
In this course students learn how to estimate and reduce carbon emissions from computers (and more importantly how to explain what to do about it to the executive of an organisation). While intended primarily for IT and engineering students, no advanced maths or science is required and students from commerce and law have successfully undertaken the course in the past. There is an open source version of the course notes are available.