To generate electricity for a city of 1 million people for 1 year:___Mine 3,200,000 tonnes of coal - emit 8,500,000 tonnes of greenhouse gases and particulates - landfill 900,000 cubic metres of toxic/radioactive fly-ash.___OR___Mine 50,000 tonnes of uranium ore - emit no greenhouse gases - produce 24 tonnes of radiotoxic 'waste'.___OR___Mine 50 tonnes of equivalent thorium ore - emit no greenhouse gases - produce 0.8 tonnes of radiotoxic 'waste'.
In a 1989 article titled “The Myth of Plutonium Toxicity,” Cohen famously challenged activist Ralph Nader: “I offered to eat as much plutonium as he would eat of caffeine, which my paper shows is comparably dangerous, or given reasonable TV coverage, to personally inhale 1,000 times as much plutonium as he says would be fatal.”
Nader did not take up the challenge.
In a 2005 interview with RSO (Radiation Safety Officer) Magazine, Cohen recommended to the scientific community: “Don’t be enslaved to the linear-no threshold theory of radiation-induced cancer; it is almost certainly not valid and over-estimates the risks from low-level radiation. … As a nation, we are wasting tens of billions of dollars cleaning up little bits of radiation. The worst thing is that we are largely giving up on nuclear energy because of this.”