More than half of the world's electricity will be generated by low-emission sources before 2030 but the deployment of clean energy is "far from uniform" across the globe, the International Energy Agency said Wednesday.
Demand for oil, gas and coal is still projected to peak by the end of the decade, possibly creating a surplus of fossil fuels, the IEA said in its annual World Energy Outlook.
"In energy history, we've witnessed the Age of Coal and the Age of Oil," said IEA Executive Director Fatih Birol.