The weapon, known as a nuclear electromagnetic pulse (EMP) bomb, uses high-intensity radio waves emitted from nuclear explosions in the upper atmosphere that scrambles electronics, like a sudden power surge.
In their warning, the experts claim that such a blast could indirectly wipe out up to 90 per cent of people in the US within a year.
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The experts claim that an EMP bomb would be detonated from an altitude of 30 to 400 kilometres (18.6 to 250 miles) above a target, resulting in the loss of electricity to an enormous region.
This could have a range of devastating effects, including knocking out refrigeration for medicines and food, disrupting communication networks, and preventing water processing.
In the paper, the researchers wrote: ‘The result could be to shut down the US electric power grid for an indefinite period, leading to the death within a year of up to 90 per cent of all Americans.’