Copyright © 2009 AP
Filipinos assemble their folding bikes as they alight from the Light Rail Transit during the launching of its "Bike On, Bike Off (BIKE-O2) Project" in Manila, Philippines on Sunday Nov. 8, 2009. The BIKE O2 project hopes to encourage people to leave their vehicles at home to help promote cleaner air and prevention of climate change. (AP Photo/Aaron Favila)