Since the days when John Muir walked across its campus, there has been a keen interest in the environment at the University of Wisconsin at Madison. The Center for Sustainability and the Global Environment keeps this tradition alive through its different projects and publications. Perhaps the best part of the site is the Atlas of the Biosphere, which contains numerous maps documenting environmental phenomena across the globe, such as water resources, ecosystems, land use patterns, and human impact, at a variety of scales. The Atlas also contains the data sets that were used to generate these different thematic maps. Related material on the site includes several different global ecosystem and terrestrial hydrology models that have been created by the Center, and are made publicly available here for general review. Providing engaging scholarship and general information about the relationship between humankind and the environment makes the Center's work both timely and of great interest.