So bornite, is there some magical yield threshold that, when reached, should permit or reject a mining project going ahead? You don't need high-rainfall/yield to have a profitable farming business and mixed practices, rotations, technology and the like all play a key role in making some marginal country a great business.
Like I said, regardless of marginal country, god's country or otherwise, the important issue is that the consultation process is rigorous and that all parties are given a chance to research and project the consequences. If it stacks-up, is safe and is in best interests of the majority, then go for it!
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