Until the full costs of mining are apportioned to the miners this type of environmental destruction will continue. On land we have the "rehabilitation funds" that when mining is over are the funds supposed to return the mine to its previous state. If this is required for the seabed the costs are so high mining would never take place. Civil society can and must demand this. The ANC led govt has created so many fires, with our taxes, for civil society to extinguish so that many will get through. This looks like one we need to fight to the death.