Billionaire claims the Brazilian mining giant was well aware of allegations that the Guinean mining rights it agreed to buy had been secured illegally.
One of the key questions for the outlook for energy commodities is how quickly the current high prices translate into demand destruction, writes Clyde Russell.
Researchers have discovered a ‘Goldilocks zone’ at the base of the earth’s crust where temperature allows for metals to be transported to shallower levels near the surface.