In 2004, the U.S. food supply provided 3,900 calories per person per day. Accounting for waste, the average American consumed 2,775 calories per day in 2007 - an increase of 28% from 1970.
The need for global solutions to environmental, social, and economic challenges is greater than ever. The Center for Sustainable Systems, within the School of Natural Resources and Environment at the University of Michigan, leads interdisciplinary research to support the design, assessment, and management of systems that meet societal needs in a more sustainable manner.

