LONDON.- Kofi Annan, Honorary President of the Prix Pictet, announced this evening, Thursday 17 March 2011, Mitch Epstein as the winner of the third Prix Pictet photography prize for environmental sustainability. The prize is sponsored by the Swiss bank, Pictet & Cie, with a value of 100,000 Swiss Francs (100,000 dollars, €80,000). The announcement was made at the opening of an exhibition of the works of the 12 shortlisted photographers at the Paris gallery, Passage de Retz. Jacques de Saussure, Senior Partner of Pictet, awarded the 40,000 Swiss Francs (40,000 dollars, €30,000) commission to the US photographer Chris Jordan to undertake a field trip to Northern Kenya where Pictet & Cie is currently supporting the work of the environmental charity, the Tusk Trust. The two photographers were selected from a shortlist of twelve, namely Christian Als, Edward Burtynsky, Stéphane Couturier, Mitch Epstein, Chris Jordan,