David Hoffman Photo Library | 090908_DSEI_002 Sound measuring equipment to record noise pollution in Docklands, London. 8 Sept 2009.

Protest over tar sands exploitation by BP outside the BP headquarters building

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090908_DSEI_002 Sound measuring equipment to record noise pollution in Docklands, London. 8 Sept 2009.

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Global Climate Wake-Up Call in Parliament Square, London

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