세월호교실
Brian Hamilton
Description: In 1969, Gaylord Nelson had an idea for a national teach-in on the environment. That idea became Earth Day.
Gaylord Nelson, Founder of Earth Day
The Making of the Modern Environmental Movement
In 1969, Gaylord Nelson had an idea for a national teach-in on the environment to send a message to Washington that public opinion was solidly behind a bold political agenda on environmental problems.
세월호교실
Brian Hamilton