Administrative Court of Appeal of Nantes of 22/3/2013, n° 12NT00342. Administrative Court of Appeal of Nantes of 21/7/2014, n° 12NT02416 : The Court of confirms the liability of the State concerning the proliferation of green algae and compensates the owner of the horse that died on the beach of Saint Michel en Grève in August 2009 following the release of hydrogen sulphide from the decomposition of algae washed up on the beach.