More or Less

Is planet Earth getting greener?

Listen Later

Canadian psychologist and culture war commentator Jordan Peterson says planet Earth has got 20% greener in the last 20 years.

But satellite data tells a different story.

We investigate the correct number, with the help of Dr Chi Chen, from Rutgers University in the US.

Presenter: Kate Lamble

Series producer: Tom Colls
Production co-ordinator: Brenda Brown
Sound mix: Giles Aspen
Editor: Richard Fenton-Smith

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More or LessBy BBC Radio 4
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