The mix of environmental change and overfishing is causing a rise in the population fo jellyfish. Since there are less fish to eat them, they show up off the British drift in immense swarms. This is a danger to atomic power stations – on the grounds that they can hinder the admission of cooling water – and to angle ranches, where thousands get discovered in the netting, now and again killing many salmon by denying them of oxygen.

With the issue worsening as the oceans get both more corrosive and hotter, the European Union has chosen it needs to better see how these situations happen and think about a method for ceasing them before they reach our waterfront waters.