Environmental Science 1021F/G Lecture Notes - Lecture 6: Potash, Gypsum, Waterfowl Hunting
14 Dec 2017
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Document Summary
Global and canadian production and use of non-renewable natural resources. A sustainable economy runs with no net consumption of natural resources. It is fundamentally based on the wise" use of renewable resources; use that does not deplete their stocks or availability to future generations. Global and canadian production and use of metals, fossil fuels, and other non- renewable natural resources. Metals aluminum, copper, iron, nickel, zinc . Fossil fuels natural gas, petroleum, coal, oil-sand. Others asbestos, gypsum, limestone, potash, salt, sulphur, aggregates. Geologists search for metals occurring in rich deposits at or near the surface. The known exploitable reserves" can be mined and processed, while making a profit, which is affected by: the market price, metal concentration in the ore, remoteness of the mine. After mining, the ore is milled, smelted, and refined into pure metal, which is then used in manufacturing. After this use, metals may be recycled or discarded. Global and canadian production and use of metals.
