Deep in the bedrock of Finland, huge tunnels are being dug to dispose of nuclear waste and keep it safely stored for 'one million years'. Read the exclusive report from SkyNewsThomas 👇
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Other countries, including the UK, are considering plans to build their own geological disposal facilities, which should safely isolate the 260,000 tonnes of highly radioactive waste that has accumulated worldwide since the dawn of nuclear power in the 1950s. Our guide was Sanna Mustonen, a geologist and senior project manager for Posiva, the company that runs the facility.Advertisement"We have old rock. We don't have continental plates nearby, so we don't have any earthquakes, seismicity, or things like that."Like other countries Finland stores spent nuclear fuel above ground in shielded bunkers while it seeks a long-term solution.
"On the surface the interim storage needs active measures from humans, the building needs to be heated, the spent fuel must be cooled, there must be security around it. When the complex is full in around a century's time, with perhaps as many as 3,250 cannisters, it will be sealed up and all trace removed above ground."There may not be humans here any more because in that time there will be ice ages or [this area will be] underwater but this is designed to keep it out of the biosphere."Some scientists have warned water could corrode the metal, become radioactive and then rise to the surface over millennia.
Bruce Cairns, chief policy adviser at the UK's Nuclear Waste Services, was also taking a look at Onkalo while we were there.
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