Without public transportation systems, the annual impact of American households would include an additional 102.2 billion vehicle miles traveled, 5.3 billion gallons of gas, and 37 million metric tons of CO2 emissions.
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.

