The World at 7 Billion: Can We Stop Growing Now?

With global population expected to surpass 7 billion people this year, the staggering impact on an overtaxed planet is becoming more and more evident. A two-pronged response is imperative: empower women to make their own decisions on childbearing and rein in our excessive consumption of resources.

Robert Engelman, Yale Environment 360, July 18, 2011

Demographers aren’t known for their sense of humor, but the ones who work for the United Nations recently announced that the world’s human population will hit 7 billion on Halloween this year. Since censuses and other surveys can scarcely justify such a precise calculation, it’s tempting to imagine that the UN Population Division, the data shop that pinpointed the Day of 7 Billion, is hinting that we should all be afraid, be very afraid.


Population growth, historical and projected, 1950-2100

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UN: Global Population to Top 10 Billion by 2100

Environment News Service, May 5, 2011

NEW YORK, New York – The world’s population will surge past nine billion before 2050 and reach 10.1 billion by the end of the century if current fertility rates continue, according to United Nations figures released Tuesday.

Today’s world population is currently close to seven billion, increasing by the second, and is projected to surpass seven billion towards the end of this year. Continue lendo

Consumption Dwarfs Population as Main Environmental Threat

It’s overconsumption, not population growth, that is the fundamental problem: By almost any measure, a small portion of the world’s people — those in the affluent, developed world — use up most of the Earth’s resources and produce most of its greenhouse gas emissions.

Fred Pearce, Yale 360, April 13, 2009

It’s the great taboo, I hear many environmentalists say. Population growth is the driving force behind our wrecking of the planet, but we are afraid to discuss it.

It sounds like a no-brainer. More people must inevitably be bad for the environment, taking more resources and causing more pollution, driving the planet ever farther beyond its carrying capacity. But hold on. This is a terribly convenient argument — “over-consumers” in rich countries can blame “over-breeders” in distant lands for the state of the planet. But what are the facts? Continue lendo

Capital paulista ‘exporta’ 293 mil pessoas nesta década

José Roberto de Toledo, O Estado de S.Paulo, 30 de novembro de 2010

Depois de cinco séculos recebendo migrantes de todas as partes do Brasil e do mundo, São Paulo tornou-se uma “exportadora” de gente no século 21. Entre moradores que chegaram e pessoas que abandonaram a cidade, a capital paulista perdeu 293 mil habitantes nesta década.

É o que os demógrafos chamam de saldo migratório negativo. São Paulo só continuou crescendo porque o saldo vegetativo foi alto: 1,770 milhão de nascimentos contra 667 mil mortos entre 2000 e 2010, segundo dados do Datasus (Ministério da Saúde). Continue lendo

População brasileira passa por ”superenvelhecimento”, diz Ipea

A expectativa do Instituto de Pesquisa Econômica Aplicada (Ipea) é que a população brasileira atinja sua expansão máxima em 2030, com aproximadamente 206,8 milhões de pessoas, e passe a se contrair depois disso, caso a taxa de fecundidade não volte a crescer. Com isso, nos próximos 20 anos, deverá haver um “superenvelhecimento” da população, o que deverá modificar as políticas públicas dos próximos governos.

Juliana Ennes, Valor, 14 de outubro de 2010

Com a continuidade da dinâmica da fecundidade e da mortalidade iniciada no século passado, a expectativa do Ipea, ao analisar dados do Instituto brasileiro de Geografia e Estatística (IBGE) é que, em 2040, o contingente populacional brasileiro seja de 204,7 milhões. Continue lendo