Alan Davis of Queensville claimed that nuclear fission is a human creation using highly refined materials not found in nature. He also raised concerns about nuclear waste.
Nuclear fission is natural to the earth.
It is spontaneously going on right now at a very low rate, in the earth's crust and deep below. It produces heat, radiation, and nuclear waste, but there is no chain reaction involved. Long ago, however, uranium ore was much richer, and spontaneous chain reactions were possible. If Nature can safely dispose of nuclear waste for as long as it is a potential hazard, so can we. Canada has developed a technical solution, and has a clear way forward in continuing to manage its nuclear waste safely and responsibly.