Photos Click the thumbnails below for a larger version and description. US Senator Edmund Muskie Earth Week Logo Walter Cronkite Earth Week 1970 Schedule US Senator Edmund Muskie US Senator Edmund Muskie US Senator Edmund Muskie US Senator Edmund Muskie US Senator Edmund Muskie US Senator Edmund Muskie with poet Allen Ginsberg Cast of the hit Broadway musical “Hair” at Earth Week Sally Eaton from "Hair" singing on Earth Day Redbone at Earth Day Philadelphia Ralph Nader Ralph Nader Ralph Nader Allen Ginsberg Allen Ginsberg Poster Earth Week Committee 1970 Ian McHarg Alan Watts Austan Librach, Edward Furia, and Ian McHarg Hugh Scott with Elliot Curson Business people John McHale Ian McHarg Earth Week with Ian McHarg Edward Furia Edward Furia Austan Librach « ‹ 1 of 2 › »