Nuclear power is the second-largest source of low-carbon electricity today, with 452 operating reactors providing 2700 TWh of electricity in 2018, or 10% of global electricity supply. Nuclear power has prevented about 55 Gt of CO2 emissions over the past 50 years, equivalent to nearly 2 years of global energy-related CO2 emissions.

Nuclear power can play an important role in the clean energy transition. Regulatory policies are key in the development of advanced economies including the importance of investment, especially in advanced economies, and would have implications for emissions, costs and energy security. A quarter of the current nuclear capacity in advanced economies is set to be shut down by 2025 – mainly because of policies to reduce nuclear’s role in energy production. Learn how we are working to decarbonize six of the highest-emitting sectors: energy, water, waste, smart cities, banking, agriculture.