AlterNet: ve never been to a protest march that advertised in the New York City subway. That spent $220,000 on posters inviting Wall Street bankers to join a march to save the planet, according to one source. That claims you can change world history in an afternoon after walking the dog and eating brunch. Welcome to the Peoples Climate March set for [today], Sept. 21 in New York City. Its timed to take place before world leaders hold a Climate Summit at the United Nations two days later. Organizers are...