Since Mark sold his car, he has been biking to work most days. He estimated how much carbon he was keeping out of the environment. His goal was 350 pounds...which he achieved on Friday, April 30, 2010. Here we are celebrating his success!!
Why 350?
"350 is the most important number in the world—it's what scientists say is the safe upper limit for carbon dioxide in the atmosphere." For more information on why 350 and what we can do to get there..check out www.350.org
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