Australian Broadcasting Corporation: Andrew Mackenzie, who took over at BHP in 2013 has called for a price to be put on greenhouse gas emissions to address the threat of global warming. He says the mining industry needs to do more to develop technology to capture and store carbon dioxide. Talking in Houston Texas on the future of fossil fuels and carbon emissions Andrew Mackenzie said BHP needs to think carefully about controlling its carbon emissions. He wants BHP to lead the way. BHP is the world's largest mining company and the third...