The dark side of the Cloud

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Online searches, streaming, storing photos - we use the Cloud all the time. But many of us don't realise that keeping all those cat videos, old emails and messages comes at a cost to the planet. The thousands of big storage centres which make up the Cloud and where millions of computer servers are kept are hungry for power and generate carbon emissions. Some scientists claim that one internet search alone uses as much energy as boiling a kettle. BBC Panorama reporter Richard Bilton goes in search of the Cloud - and finds out more about its impact on our world. Image: Getty Images.