In a recent study, researchers from the European Environmental Bureau (EEB), the Stockholm School of Economics (SSE), and the Potsdam Institute for Climate Impact Research (PIK) questioned the planned development of new nuclear capacities in the energy strategies of the United States and certain European countries.
Typical energy density of ore in a new uranium mine burned in an LWR is about the same of coal.
All of the economic/not too damaging stuff together would power the world for about 3 years.