Four of the six nuclear reactors at France's Gravelines nuclear power plant were shut down after an intake pipe used to draw water for cooling from a canal became clogged with jellyfish, Reuters reported.

Four of the plant’s reactors shut down after swarms of jellyfish clogged its pumping stations. It isn’t the first time the creatures have thwarted nuclear plants.

A jellyfish bloom clogged a nuclear plants seawater intakes, so reactors were reduced to protect cooling. This is a known risk that is getting more common. Whats the fix?