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In a nutshell: Can nuclear fusion help save the climate?
Nuclear fusion holds the promise of delivering climate-friendly, safe, and virtually limitless energy. But even if the technology proves successful, it will likely come too late to play a major role in reaching climate neutrality by mid-century. Fusion still faces significant technical hurdles and is expected to remain costly, which could severely limit its use in a world powered mainly by renewables. This factsheet breaks down the key facts about nuclear fusion.