Witness History
Witness History
How the World Woke Up to Global Warming
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June 22, 2018
9 minutes
Available for over a year
Professor James Hansen finally got US politicians to listen to his warnings about climate change in June 1988 after years of trying. He and fellow NASA scientists had first predicted global warming in 1981. Professor Hansen spoke to Ashley Byrne about his discoveries.
Image: Map of the world. Credit: Science Photo Library.