Peter Raven is an American botanist and environmentalist, notable as the longtime director, now President Emeritus, of the Missouri Botanical Garden. He served as an advisor to Pop...view morePeter Raven is an American botanist and environmentalist, notable as the longtime director, now President Emeritus, of the Missouri Botanical Garden. He served as an advisor to Pope Francis on Laudato Si and was named a Hero of the Planet by Time magazine. He lives in Wildwood, Missouri.view less