Top three quarters of the button have a black background, bottom quarter has a white background. Black text on white portion with the top of the letters meeting the boundary of the black portion. There is a white tree coming out of top of the letter "I" into black portion.
ENACT ECOLOGY CENTER, INC. Ann Arbor, Mich.
This button, distributed by the ENACT (Environmental Action for Survival) Ecology Center of Ann Arbor, Michigan, touts one of the popular mantras of environmentalists in the late 1960s and 1970s: Survival. The mounting environmental degradation of this period provoked questions about the future of humanity and concerns about its survival. As part of this movement, the Ecology Center was established one month after the first Earth Day in 1970. This establishment sought to promote environmental awareness, education, and advocacy through endeavors such as recycling programs, community projects, and environmental lobbying.
Source: Rome, Adam. (2003). "Give Earth a Chance": The Environmental Movement and the Sixties. Journal of American History, 90(2), 525-554.