Photographers work with charities to depict the world's problems in Pictet commissions

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The Prix Pictet is the ultimate environmental photography prize: rich in reward for the winner and viewer. Along with the annual prize, they also commission a photographer to undertake a field trip to a region where Pictet is supporting a sustainability project.

The work of the commissioned artists is now on view in London. Chris Jordan, a TreeHugger favourite, went to Africa in 2011 to work with the Tusk Trust.

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