Originally published on Greenpeace International

This year has been the 50th Anniversary of Greenpeace; 2022 will be the 50th anniversary of the Limits to Growth study. During this era, a half-century ago, citizens around the world began seeing signs of a pending ecological crisis, and began to talk about it. 

The image above could be considered the first Greenpeace public media statement, one of twelve billboards erected in Vancouver, in 1969, by Greenpeace co-founders Dorothy and Ben Metcalfe.