Photos of the 350 Climate Change Action, SF

October 24, 2009 (SAN FRANCISCO, CA)--Over an thousand folks gathered at the foot of Market Street in San Francisco today to take part in the "350" international campaign today. The campaign is dedicated to building a movement to unite the world around solutions to the climate crisis--the solutions that science and justice demand. "Our mission is to inspire the world to rise to the challenge of the climate crisis—to create a new sense of urgency and of possibility for our planet. Our focus is on the number 350--as in parts per million, the level scientists have identified as the safe upper limit for CO2 in our atmosphere. But 350 is more than a number--it's a symbol of where we need to head as a planet," explains the 350.org website.