When six Greenpeace activists scaled a tower at the Kingsnorth, coal-fired power station in 2007 to protest against climate pollution, the resulting court case and subsequent acquittal proved historic and changed government policy in the UK.

This exceptional, 19-minute documentary is a rare insight into the risk, commitment, courage and emotions of those who are compelled by injustices to participate in non-violent, civil disobedience.

After watching the video above, we hope you'll think twice next time you or anyone you know is quick to criticize organizations like Greenpeace, whose campaigners and volunteers routinely lay their necks on the line to attempt to protect our future from the many powerful, protected interests that conspire to destroy it.

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• Article: Why 6 Britons Went to Eco War, Geraldine Bedell, The Guardian