World population

The world’s population now exceeds 7.8 billion people. Our population is still growing by more than 80 million people every year and is likely to keep growing until the end of the century, unless we take action.

It took the human population until 1800 to reach 1 billion people – we now add a billion more every 12 to 15 years. Since 1970, our numbers have more than doubled.

Learn more about our numbers here.

See our latest news stories and blog posts about world population below.

Sir David Attenborough speech to the RSA, 2011

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3 July 2014

Porritt on British e-NGOs and population

It doesn’t take too long to open up incredibly divisive discussions about population, development and the environment. For instance, how would you respond to the following facts?

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Journal October 2013 Vol. 13, No 2

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Journal April 2013 Vol. 13, No 1

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OPT Journal October 2012 Vol. 12, No 2

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Journal April 2012 Vol. 12, No 1

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Optimum Population Trust Journal October 2011 Vol. 11, No 2

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Optimum Population Trust Journal April 2011 Vol. 11, No1

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Optimum Population Trust Journal October 2010 Vol. 10 No 2

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Optimum Population Trust Journal October 2009 Vol. 9, No 2

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