Earth Day Vancouver
Blue Marble
Earth Flags

Earth Day Symbols

Cobb's International Symbol for Ecology

In 1969, artist, writer and political cartoonist Ron Cobb created an international symbol for ecology. The symbol was a combination of the letters "e" and "o" taken from the words "environment" and "organism", respectively. He published it in the Los Angeles Free Press on October 25, 1969, and placed it in the public domain.

Astrological Symbol for Earth

Earth Day Vancouver © 2009. Earth Day Vancouver
Last modified: Apr. 21, 2010
Created: Mar. 18, 2009