Lee and Raul
In Chicago, Raul Gonzalez (left) and Lee Ravenscroft, both volunteers with the Working Bikes Cooperative, show how discarded bikes can aid in pumping water and generating electricity for developing countries. Their display was featured at the city's Earth Day celebration at Daley Plaza on Tuesday. (Tribune photo by Milbert O. Brown / April 22, 2008)
April 25, 2008 - 9:37am
