For some experts, nuclear energy — in all forms, large or small...

For some experts, nuclear energy — in all forms, large or small — has an important role to play in that transition. The International Energy Agency, which outlined what many experts say is the world’s most realistic plan to decarbonize, sees a need to more than double nuclear energyby 2050.

“There’s definitely a huge race on,” said Josh Freed, who leads the Climate and Energy Program at the think tank Third Way. “China and Russia have more agreements to build all sorts of reactors overseas than the US does. That’s what the US needs to catch up on.”

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