Bill McKibben '82 has founded 350.org, a worldwide action group that this weekend (Oct. 23-25) will promote demonstrations on every continent. McKibben was at Harvard's Memorial Church for a 90-minute "climate convocation" sponsored by 17 groups. Author and climate activist Bill McKibben '82 ascended into the pulpit of the Memorial Church at Harvard University on Oct. 18, a stage so grand that legend puts it "10 feet above contradiction." McKibben's message is that the Earth is warming rapidly, that climate change is too late to stop, but that it is not too late to act. Acting means getting humankind, with...