From Clive Semmens
Julien Glazier refers to Fergus Gibb’s idea of packaging the hottest nuclear waste into tungsten capsules and letting them melt their way down through the Earth’s crust (7 December, p 32). Surely if our hottest nuclear waste was really as (thermally) hot as that, and would remain so for a protracted period, we wouldn’t call it waste at all. We would put it in those capsules and drive a power station with it.
Ely, Cambridgeshire, UK
