Earth Day Turns 30!

The first annual observance of Earth Day was in 1970. Millions now participate worldwide.

To view more posters designed to give advice to Americans about environmental issues, visit our virtual exhibition Posters, American Style.

Pictured: Jennifer Morla, born 1955, Save Our Earth,1995, offset lithograph, 35 1/8 x 23 1/2 in., Smithsonian American Art Museum, Gift of the artist, Morla Design, Inc., San Francisco.