
A Breton water rights group is suing the French state for not doing enough to lower the amount of nitrate pollution in the Channel, which contributes to the growth of toxic – and sometimes deadly – green algae.
Green algae on the Breton coast has been a problem since the 1970s, as it washes up on shore and rots, producing hydrogen sulphide, a highly toxic gas that has caused people and animals to fall ill, and sometimes die.