From his speech yesterday:
http://www.nyu.edu/community/gore.htmlMany believe that a responsible approach to sharply reducing global warming pollution would involve a significant increase in the use of nuclear power plants as a substitute for coal-fired generators. While I am not opposed to nuclear power and expect to see some modest increased use of nuclear reactors, I doubt that they will play a significant role in most countries as a new source of electricity. The main reason for my skepticism about nuclear power playing a much larger role in the world’s energy future is not the problem of waste disposal or the danger of reactor operator error, or the vulnerability to terrorist attack. Let’s assume for the moment that all three of these problems can be solved. That still leaves two serious issues that are more difficult constraints. The first is economics; the current generation of reactors is expensive, take a long time to build, and only come in one size - extra large. In a time of great uncertainty over energy prices, utilities must count on great uncertainty in electricity demand - and that uncertainty causes them to strongly prefer smaller incremental additions to their generating capacity that are each less expensive and quicker to build than are large 1000 megawatt light water reactors. Newer, more scalable and affordable reactor designs may eventually become available, but not soon. Secondly, if the world as a whole chose nuclear power as the option of choice to replace coal-fired generating plants, we would face a dramatic increase in the likelihood of nuclear weapons proliferation. During my 8 years in the White House, every nuclear weapons proliferation issue we dealt with was connected to a nuclear reactor program. Today, the dangerous weapons programs in both Iran and North Korea are linked to their civilian reactor programs. Moreover, proposals to separate the ownership of reactors from the ownership of the fuel supply process have met with stiff resistance from developing countries who want reactors. As a result of all these problems, I believe that nuclear reactors will only play a limited role.