30 years ago on this day the nuclear accident of Chernobyl brought the risks of nuclear energy production closer to the European population. Alongside the United States, Europe has the most dense network of nuclear power plants in relation to its population, as the below map shows. Of the producers of nuclear power in Europe, France (17.1%) and Russia (7.0%) are the largest when comparing it to the global share (France comes second after the USA). The United Kingdom’s production accounts for 2.9%. In contrast, France generates the largest share of its domestic electricity generation from nuclear power (74.4%) worldwide. It is followed by Sweden (43.4%) and Ukraine (43.0%), while the United Kingdom comes fifth with 19.2%.