Peter Ellis gave a presentation on how information evangelism and environmental sustainability are related. He defined information evangelism as promoting information use and dissemination, and environmental sustainability as creating balance between human and natural systems. Ellis argued that information systems, like natural environments, need balance and that information evangelism and sustainability take process approaches to redesigning systems for lower impact. Specifically, information evangelism can help filter unnecessary information to reduce energy use and waste, while sustainability benefits from improved information signaling business adaptations. Overall the talk linked the two fields through their process views and potential for more balanced, efficient systems.