Lincoln Day is a member of the Environmental Film Festival’s Advisory Council. He has produced and directed films such as Ecosystems, War and Climate Change (2015) and Scarred Lands and Wounded Lives (2008) with his wife, Alice Day. He has also produced What We Are Leaving Behind in Iraq (2015).
Lincoln is currently a board member for the Center for Arms Control and Non-Proliferation. He is a member of the Council for a Livable World and of the Cosmos Club (Washington). Before moving to Washington, Lincoln was most recently a Hofstee Fellow at The Hague (1994) and a Senior Fellow in Demography at Australian National University, Canberra, Australia (1973-1993).
In addition to some 80 book chapters and articles in professional journals, he is the author of two books, co-author of four others (two of which were written in collaboration with Alice T. Day), and editor and part author of two more. Apart from Too Many Americans (1964, written with Alice Day), his best-known books are: The Future of Low-Birthrate Populations (1995) and Analysing Population Trends: Differential Fertility in a Pluralistic Society (1983).