The city of Madison is considering an ambitious blueprint on how to spread the green movement deeper into the community and broaden its goals.The draft, 73-page Madison Sustainability Plan offers dozens of ideas. They range from the easily-embraced ? implementing clean-up plans to remove all city beaches from the state?s impaired waters list ? to the controversial ? exploring electronically monitored Downtown toll zones with the goal of reducing traffic and emissions. The effort has involved developers, architects, engineers, utilities, the Madison schools, UW-Madison, city officials and others.