The prospect of nuclear power in Australia has been a topic of public debate since the 1950s. Australia has one nuclear plant in Lucas Heights, Sydney, but is not used to produce nuclear power, but instead is used to produce medical radioisotopes. It also produces material or carries out analyses for the mining industry, for forensic purposes and for research. Australia hosts 33% of the world's uranium deposits and is the world's third largest producer of uranium after Kazakhstan and Canada.