ENV100Y5 Study Guide - Final Guide: Radioactive Waste, Conflict Resource, Life-Cycle Assessment
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ENV100Y5 Full Course Notes
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Document Summary
Central case: mining for cell phones: contain coltan= columbite + tantalite. Many ways to classify resources: perpetual (inexhaustible) resources, non-renewable, critical flow resources (effectively non-renewable because of mismanagement, recyclable resources, common property resources, other (human resources, earth resources vs living resources. Living resources replace or restock themselves by births and growth: includes, fish, trees. Some energy resources (biofuels: stock is renewable (at least in theory) Living population stocks can be mismanaged to the point where the populations crashes: managed differently from non-living earth resources. Earth resources are extracted from the earth: non-renewable on humanly timescale. Some energy sources (fossil fuels: management approach: conservations, efficiency, 3r"s. Some replenish able resources can become effectively non-renewable: replinishable resources are: Renewable and regenerating in principle, but long time scale: susceptible to mismanagement. Critical flow resources rate of withdrawal> rate of replenishment out flux greater then influx. Mining: systematic removal of rock, regolith, or other materials for extracting minerals or economic interest.
