This is not my claim; I'm just passing it on. It comes from Walter Leal (Filho) and describes the forthcoming book: Sustainable Development at Universities: new horizons – edited by Walter Leal. This arises from the "World Symposium on Sustainable Development at Universities" (sic) that was held at Rio+20, and which I'm told was a low-cost, highly participative event with lots of Latin American input.
There is a You Tube video from the conference which includes Walter passing on his knowledge of universities and sustainable development. It does not take long.