Two experts explain how long it could take until fusion power plants are possible. Fusion plants could theoretically produce almost 4 million times as much energy as burning coal or oil — with none of the carbon emissions. It's what Andrew Christlieb, who is part of a US Department of Energy fusion project at Michigan State University, calls "step zero." The US Department of Energy's Fusion Energy Sciences program has a $763 million budget for 2023, which could grow to over $1 billion next year. Achieving commercial fusion power in two decades won't be quick enough to address many countries' goals of adapting clean energy and limiting global warming by 2035.

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Persons: It's, Andrew Christlieb, Christlieb, Michael Livingston, PPPL, Jean, Paul Pelissier, it's, Jason Laurea, Lawrence, Jonathan Menard, Menard, Bill Gates, Sam Altman Organizations: Service, Ignition, NIF, US Department of Energy, Michigan State University, Royal Society, Reactor, REUTERS, European Union, Lawrence Livermore National Laboratory, Princeton Plasma Physics, US Department of Energy's Fusion Energy Sciences, Fusion Industry Association, Tech Locations: PPPL, Saint, Durance , Southern France, US, China, Russia, Lawrence Livermore, Princeton