The Union of Concerned Scientists is the leading sciencebased nonprofit working for a healthy environment and a safer world. UCS combines independent scientific research and citizen action to develop innovative, practical solutions and to secure responsible changes in government policy, corporate practices, and consumer choices.

Address: Two Brattle Sq. Cambridge, MA 02238-9105
Telephone: (617) 547-5552
Fax: (617) 864-9405
Website: http://www.ucsusa.org/clean_vehicles/