AAP: The federal government’s proposed emissions trading scheme has been endorsed by an unlikely ally – one of the world’s largest mining companies, Newmont Mining Corporation. Newmont chief executive Richard O’Brien said nations had an obligation to reduce their carbon footprint and he was so far supportive of the government’s moves towards dealing with the issue. “I think the focus on having sort of users pay is probably a good thing to focus on,” Mr O’Brien told journalists in …