View of the bed of Jacarei river dam, in Piracaia, during a drought affecting Sao Paulo state, Brazil on November 19, 2014. The Jacarei river dam is part of the Sao Paulo's Cantareira system of dams, which supplies water to 45% of the metropolitan region of Sao Paulo --20 million people-- and is now at historic low. AFP PHOTO / NELSON ALMEIDA (Photo credit should read NELSON ALMEIDA/AFP/Getty Images)
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U.N.: Tackling climate change is a long-term commitment
Amanpour
Former Australian Prime Minister Kevin Rudd looks ahead to the Paris Climate Change Conference with U.N. Envoy Christiana Figueres and Lord Nicholas Stern.
10:34 - Source: CNN
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View of the bed of Jacarei river dam, in Piracaia, during a drought affecting Sao Paulo state, Brazil on November 19, 2014. The Jacarei river dam is part of the Sao Paulo's Cantareira system of dams, which supplies water to 45% of the metropolitan region of Sao Paulo --20 million people-- and is now at historic low. AFP PHOTO / NELSON ALMEIDA (Photo credit should read NELSON ALMEIDA/AFP/Getty Images)
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U.N.: Tackling climate change is a long-term commitment
10:34
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- Source: CNN