MADRID: Ecologists said on Wednesday (Thursday in Manila) they had submitted a formal complaint to the European Union over Spain's 'continued failure' to protect the Mar Menor, one of Europe's largest saltwater lagoons, against agricultural pollution. In a statement outlining details of the complaint, ClientEarth and Spain's Ecologists in Action urged the European Commission to take 'immediate action against Spain' as harmful agricultural practices were pushing the lagoon 'to the brink of ecological collapse.' It said the 'continuous build-up of fertilizers from nearby agricultural land has created toxic conditions in the Mar Menor,' which breach both European Union and Spanish laws.