This was the Broadway Green Alliance table during the annual Broadway Flea Market and Grand Auction that raises funds for Broadway Cares/Equity Fights Aids. It’s great that most of the vendors provide reusable bags for your purchases. Most shows have their own bags, so you get a souvenir as well.
They encourage theatre fans to print their tickets at home…on recycled paper of course. Another tip is to carpool or take mass transit to go to shows.