REM 100 Lecture Notes - Renewable Energy, Ecosystem Services
6 Apr 2023
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Document Summary
What factors affect this number: discuss the key points of the reading on global material flows. A natural resource is a source or supply that occurs in nature without human action and can be used for the benefit of human society. Material resources of use to individuals and society: minerals, timber, fossil fuels, Flows of energy which can be harnessed for useful purpose: solar energy, hydro, . Attributes of the environment that contribute something of value (aka ecosystem services): pollination by bees, purifying of water/air, . Reserve surveyed and can be exploited in future. Potential - we think are there, but have not checked. Non-renewable form slowly or do not form naturally. Renewable - form equally fast or faster than they are used. Rate of production is much slower than rate at which resource is consumed. Ex: fossil fuels, nonmetallic minerals, metals, form slowly (geological time scales), decay naturally (radio active elements)
