Mining giant BHP has been found liable for a dam disaster under both environmental law and the Brazilian civil code, in a significant ruling handed down by the High Court. The case stems from a deadly dam disaster in Brazil. On 5 November 2015, the Fundao dam in the south-eastern part of Brazil, operated by Samarco, a 50:50 joint venture owned by BHP and its peer Vale, failed, unleashing a deluge of thick, red, toxic mud that wiped out the village of Bento Rodrigues.The collapse of the Fundao dam killed 19 people and is the worst environmental…