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Eco-photos of the week: Aug. 21-27

A stunning pink and orange sky sets over the Tower Bridge on the River Thames in London on Aug. 22.

Photo: Vickie Flores/LNP

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Sunset over the River Thames

A stunning pink-and-orange sky serves as a backdrop for the Tower Bridge on Aug. 22 on the River Thames in London.

During the 2012 Olympics in London, a $97 million floating pontoon walkway will be installed atop the river to enable easier foot transportation between central London and the Tower of London.