BBC: A long-awaited UN report on how to curb climate change says the world must rapidly move away from carbon-intensive fuels.
There must be a "massive shift" to renewable energy, says the 33-page study released in Berlin.
It has been finalised after a week of negotiations between scientists and government officials.
Natural gas is seen as a key bridge to move energy production away from oil and coal.
But there have been battles between participants over who will pay for this energy transition....