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A giant donut-shaped machine just proved a near-limitless clean power source - superadmin - 02-10-2022 A giant donut-shaped machine just proved a near-limitless clean power source is possible (CNN)There's no silver bullet to the climate crisis, but nuclear fusion may be the closest thing to it. In the quest for a near-limitless, zero-carbon source of reliable power, scientists have generated fusion energy before, but they have struggled for decades to sustain it for very long. On Wednesday, however, scientists working in the United Kingdom announced that they more than doubled the previous record for generating and sustaining nuclear fusion, which is the same process that allows the sun and stars to shine so brightly. Nuclear fusion is, as its name suggests, the fusing of two or more atoms into one larger one, a process that unleashes a tremendous amount of energy as heat. Nuclear power used today is created by a different process, called fission, which relies on splitting, rather than fusing, atoms. But that process creates waste that can remain radioactive for tens of thousands of years. It's also potentially hazardous in the event of an accident, such as Japan's 2011 Fukushima disaster, triggered by an earthquake and tsunami. - More -