Rachel Carson was named by Time magazine one of the top 100 Scientists and Thinkers of the twentieth century. A biologist, writer, and ecologist, she also wrote Under the Sea Wind and Silent Spring, one of the seminal books of the environmental movement in America. She was a charter member of the Ecology Hall of Fame. Carl Safina is recipient of the Pew Scholars Award in Conservation and the Environment as well as a John Burroughs Medal. He is also a MacArthur Fellow. Robert D. Ballard is best known for his discovery of deep-sea wrecks such as the Titanic. The president of the Institu...