Exclusive: Cache of internal documents leaked to the Guardian and the ABC’s Four Corners show multinational has war-gamed ways to massively delay decarbonisation Revealed: the internal BHP memo that slammed the brakes on world’s biggest miner’s climate push Read more from the BHP files investigation here Get our breaking news email , free app or daily news podcast Exclusive: Cache of internal documents leaked to the Guardian and the ABC’s Four Corners show multinational has war-gamed ways to