France has temporarily shut down its 57 nuclear reactors as a preventative measure during the ongoing heatwave. The decision aims to avoid excessively warming rivers used for reactor cooling. Nuclear plants require water to cool their systems, and discharging heated water into already warm rivers could harm aquatic ecosystems and potentially impact water supplies. Production halts are intended to comply with environmental regulations regarding thermal pollution. The move comes as France experiences record-breaking temperatures across the country. Authorities are monitoring the situation and will reassess operations as conditions evolve, with potential impacts on energy production. This shutdown highlights the challenges of operating nuclear power plants in a warming climate.