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nuclear fusio
2026-08-30 10:08:43

Nuclear fusion may not arrive in time for the current climate fight, BlockTempo says

A BlockTempo article argues that nuclear fusion, despite a string of technical advances and growing investor backing, is unlikely to play a meaningful role in cutting global emissions during the most critical decades of climate action. The piece ties renewed interest in fusion to intensifying El Niño conditions, noting that NOAA assessed a more than 90% chance of the event developing into a “super El Niño” after the Niño 3.4 index reached +2.7°C in mid-August. Against that backdrop of heatwaves, drought and extreme rainfall, fusion is again being framed as a possible long-term clean energy answer. The article lays out why fusion attracts such optimism: no greenhouse gas emissions during the reaction, fuel sources centered on deuterium and tritium, no meltdown scenario comparable to Chernobyl or Fukushima, and a much lighter waste burden than fission. It also points to more than $7 billion invested in private fusion companies over the past decade, along with Microsoft’s 2023 power purchase agreement with Helion for electricity starting in 2028. Still, the report says climate deadlines come much sooner than fusion deployment. It places engineering net gain in the late 2020s or early 2030s, first demonstration plants in the mid-to-late 2030s, and large-scale commercial buildout much later. With ITER’s first plasma pushed beyond 2034 and major hurdles still unresolved, BlockTempo concludes fusion is more likely to matter after 2050 than before it.

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Nuclear fusion may not arrive in time for the current climate fight, BlockTempo says
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