For researchers working on historical population issues and interested lay persons, the Carl Wahren papers are a gold mine. See examples below, described by Carl himself, an advisor to TOP from our inception. By Frank Götmark Throughout his career spanning over 40 years, Carl Wahren collected population material for the future, increasingly aware of its […] The post The Carl Wahren papers are now available at Sweden’s National Archives appeared first on The Overpopulation Project.