This is a long but very enlightening piece, an interview with Peter Singer. And yes, he really does think that we need fewer people on the planet.
I do not think we need more human beings on this planet: Peter Singer
Peter Singer is a world-renowned Australian philosopher and bio-ethicist. He is the Ira W. DeCamp Professor of Bioethics at Princeton University and Laureate Professor at the Centre for Applied Philosophy and Public Ethics at the University of Melbourne. Singer specializes in applied ethics and is known for his secular and preference utilitarian viewpoints. In 2004, he was recognized as the Australian Humanist of the Year by the Council of Australian Humanist Societies. Peter Singer holds controversial and widely contested viewpoints regarding abortion, infanticide and euthanasia and has written several articles and books on these subjects. more