“As I see it humanity needs to reduce its impact on the Earth urgently and there are three ways to achieve this: we can stop consuming so many resources, we can change our technology and we can reduce our population. We probably need to do all three. m31m37-m31s56”

—  David Attenborough

How Many People Can Live on Planet Earth? (BBC Horizon, 2009)

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David Attenborough 70
British broadcaster and naturalist 1926

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