Contaminated crops and cow's milk evidence concerning radioactivity informed Sweden’s nuclear power policy .
Currently, almost 30% of Sweden's total national electricity supply comes from nuclear power. Six reactors altogether among the nation's three nuclear power stations are now in use. Forsmark, Oskarshamn, and Ringhals plants are the three NPPs in question.
Sweden is a signatory to the Nuclear Non-Proliferation Treaty (NPT) and a state without nuclear weapons. When the nation ratified the Treaty in 1968, it halted nuclear weapons research that had been carried out since the Second World War.
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