| http://www.w3.org/ns/prov#value | - In South Africa, the approach to 'peak coal', i.e. the date at which annual production reaches a culmination or zenith, was implicitly recognised by Prevost6 in a prescient 2003 review: The South African coal industry is rapidly approaching a stage of stagnation, mainly due to a lack of re-investment by the main producers.
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