Immigration is an Environmental Issue.
Immigration is an Environmental Issue. Alliance for Stabilizing America's Population Since 1945, the U.S.'s population growth rate has equaled that of India's. A forthcoming Sierra Club membership poll on whether to adopt a stance on population and immigration policy has provoked just this sort of response. Well before the first' Earth Day in 1970 the Sierra Club had advocated population control as essential to protecting the environment. When a place got too sullied or drained of natural resources, we could just move on.