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y Our manmade environmental crisis
Relationships of economics to the politics of population
Overpopulation and mental health
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abortion accept adrenal agricultural areas attitude baby Barbados basic behaviour biological birth control birth rate Cadbury Canada Canadian Carstairs Catholic century Church Clark Cole Committee concerned conscience contraceptive Cowan death rates developing countries discussion ecological economic development economic growth effect Encyclical environment fact factor family planning family planning programme fertility going human Humanae Vitae important increase India Keenleyside Kneen land Latin America living matter means mental million moral nitrogen nitrogen cycle organization overcrowding overpopulation oxygen percent person planned parenthood political pollution Pope population control population explosion population growth population problem possible pregnancies present production protein question rate of population rats recent responsibility RFSU sexual situation social society status of women Stycos Sweden Swedish Teach-In things Toronto U.S. dollars United Nations University University of Toronto woman world population