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目前世界人口为55亿，三十年后将接近100亿，这表明每年将多消耗900万t铝、14亿t油和15亿t煤。许多国家的人均原材料使用量也在增长，即使按最悲观的估计，也需要大力发展采矿、冶炼、运输和加工工业。今后30年新矿山的选址取决于许多因素，包括：商品需求的预测、已探明的资源
With a current world population of 5.5 billion, it will reach 10 billion in 30 years, indicating that 9 million tons of aluminum, 1.4 billion tons of oil and 1.5 billion tons of coal will be consumed each year. The per capita consumption of raw materials in many countries is also growing, and even the most pessimistic estimates require the development of mining, smelting, shipping and processing industries. The location of the new mines for the next 30 years depends on many factors, including: forecast of commodity demand, proven resources