Scientists warn that as humans move more activities off-Earth, more debris will fall to Earth, polluting as it plummets.
Mr Fingleton added: "Motorways wouldn't be very useful if we all drove at five miles (8km) an hour, but that's sort of what we're doing in nuclear safety."
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RadialB's fake videos portray grimy Croydon waterparks and an arcade machine filled with knives
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