The full threat of the extreme heat and drought conditions affecting much of Europe this summer has been expressed in the starkest terms after it was revealed that at least 15 nuclear reactors across the continent have had to be temporarily shut down or operate at reduced output.

Romania blasted apart a river rock to redirect cooling water, while Hungary imposed emergency restrictions as drought, extreme heat and record-low water levels crippled power…

Nuclear reactors in Hungary and Romania have been closed due to record droughts across Central Europe, raising questions about the bloc’s energy security