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What was it like campaigning against CFCs in the 1970s?
Environmentalist and writer Jonathan Porritt joined the environmental group Friends of the Earth in the late 1970s. Now a huge global network, back then it was a fledgling operation. He describes what it was like trying to persuade people about the dangers of invisible gases way above their heads. Presented by Helena Merriman.
First broadcast on Analysis, 7 November 2016.
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