Mark Z. Jacobson's Proliferation of errors.
we do not consider nuclear energy (conventional fission, breeder reactors, or fusion) as a long-term global energy source. First, the growth of nuclear energy has historically increased the ability of nations to obtain or enrich uranium for nuclear weapons . . . and a large-scale worldwide increase in nuclear energy facilities would exacerbate this problem, putting the world at greater risk of a nuclear war or terrorism catastrophe . . . The historic link between energy facilities and weapons is evidenced by the development or attempted development of weapons capabilities secretly in nuclear energy facilities in Pakistan, India, Iraq (prior to 1981), Iran , and to some extent North Korea.
Jacobson's statements here are misleading to the point of disingenuousness in several respects. It is possible to produce nuclear power without the use of enriched uranium, and it is almost inconceivable that Jacobson does not know this. If he truly unaware of natural uranium thermal reactors, he has no business pretending to have enough knowledge to form valid judgements about nuclear technology. Natural, unenriched uranium can be used as a nuclear fuel in power reactors that use graphite or heavy water as moderators. All Canadian power reactors are designed to operate with natural uranium, thus enriched uranium is not required by a nuclear power industry. The first American reactors built during World War II used natural uranium fuel.
Secondly, Jacobson fails to differentiate between low enrichment uranium used in civilian power reactors, and high enrichment uranium. Low enrichment uranium (under 20% U-235) is not used in nuclear weapons, as Jacobson no doubt knows, so his failure to note this distinction should be counted as a deceptive argument.