I've said it many times, but food and water are where the action really is at. Of all our activities, nothing has done more to change the face of the planet over the last ten thousand years than agriculture. It is the greatest environmental threat to the biosphere and yet the most fundamental basis of human society. Can we get it right? This presentation consists of a twelve minute lecture followed by a four minute video that says much the same thing at a greater pace. If you want to cut to the chase, then start watching at about 14:15.