As the world gradually shifts away from fossil fuels, cleaner energy sources are stepping in: solar, wind, hydropower, and, yes, even nuclear. Like renewables, nuclear power produces minimal CO₂ and helps reduce air pollution. But while some countries are doubling down on it, others are pulling the plug.
Despite its low emissions, nuclear energy hasn’t experienced steady growth over the past two decades. In fact, by 2024 its share of global electricity production reached a new low for this century. Worldwide, it remains a divisive issue that sparks ongoing debate.
So, how much of the world’s energy still comes from nuclear power, and is that number growing or shrinking? Click through this gallery to find out.