Thorium

Uranium power plants use water as a coolant and as a heat transfer mechanism which means operating temperatures of about 300 C whereas thorium plants operate at 700 C. Water must be under pressure to get the temperature up but thorium plants operate at normal atmospheric pressure and this makes them safer because there can be no explosions caused by high pressure. Most people are not familiar with the laws of thermodynamics but one basic rule is that heat transfer becomes more efficient as the temperatures rise and this means that thorium plants are more efficient. Scientist who are able to take off their political blinders recognize that the solution to climate change is nuclear and most who work in the nuke energy field know that thorium is the way. Thorium left overs disappear in about 500 years whereas uranium by products stay around for 10,000 years. Thorium plants can use up existing stores of radioactive waste and thorium is more abundant than uranium. Unlike rare earth metals thorium can be mined without damaging the environment. If a thorium plant loses power the laws of physics force a shut down. The operators can just leave and it will shut down. In the business this is called walk away safety.