This collection contains recordings of the 2nd Annual Lecture Series in Sustainable Development 2004 of the Centre for Sustainable Development (Cambridge University Department of Engineering). The recordings are stored in DigitalVideo (DV) format, and not publicly accessible. Publicly accessible materials concering these lectures, including internet video of some lectures, can be found at http://www-g.eng.cam.ac.uk/sustdev/mphil_dls.html.