The Santa Fe EARTH event, showing how the Santa Fe River could look if there was water running through it. The Santa Fe River is one of the 10 most endangered rivers in North America. Over a 1,000 people came out and held up blue painted pieces of cardboard or tarps as a satellite passed over. The event was put on by 350.org and the Santa Fe Art Institute on November 20, 2010 in Santa Fe, New Mexico.
Photo credit: Michael Clark