The heat is on in Paris: Who is going to pay the price?
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UN climate change talks have officially kicked off in Paris. They’ve managed to gather 150 world leaders in one room - but now comes the hard part. How real is the threat of the planet overheating? How do you balance the need to switch to renewable energies with the urgency with which many want to get on the power grid?
Produced by Charles Wente, Chris Davis and Emerald Maxwell.