NextGen America was started by the environmentalist of what nationality?
Tom Steyer Thomas Fahr Steyer (born June 27, 1957) is an American hedge fund manager, philanthropist, environmentalist, liberal activist, and fundraiser.
Thomas S. Ray Thomas S. Ray (also known as Tom Ray; born September 21, 1954) is an ecologist who created and developed the Tierra project, a computer simulation of artificial life.