Thursday, August 14, 2003

Very Deep Holes

Nature reports on an idea to let nuclear waste bury itself.

High-level waste packed into boreholes drilled 5 km deep in solid granite would generate so much heat that it would melt the surrounding rock, which would then engulf it. As the deadly waste cools, the rock would eventually re-solidify, encasing it, suggests Fergus Gibb of the University of Sheffield, UK.

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