A women walks over a bridge above the Archimedean screw hydropower system of the Osney Lock Hydro on the River Thames in Oxford, England, United Kingdom. It is the first community owned hydropower scheme to be built on the River Thames, set up by local residents in 2002, it generates clean, green electricity and a source of income. The building has solar photovoltaic array panels to maximise green energy production. (photo by Andrew Aitchison / In pictures via Getty Images)
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