GGR107H1 Lecture Notes - Lecture 6: Algal Bloom, Megafauna, Antimicrobial Resistance
10 Jan 2017
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Document Summary
Populations grow geometrically, agricultural supplies grow arithmetically (moral reasoning. Population pressure drives technological change, greater food production. Framework for conceptualising the resource budget and multi-dimensional environmental burden of industrial livestock. A lot of input (food) is required to produce 1 unit of consumable meat. A lot of water is saved from avoiding the consumption of meat. Standardisation, machinery, cultivation, looks, scale of e. g. corn elds are very similar. Environmental costs, not embedded in the cost of gasoline, so farmers are able to exploit it. Irrigation, overuse of water in the soil. Quality of the soil, structure, nutrients being used, soil-mining . Cows are now forced to take on a corn-based diet. Only 4 or 5 species of cow, the species that grow faster or tolerate a corn based diet better. Restricting movement of cows, so they gain weight faster. Corn allows them to grow faster, with grass they require 2-3 years to be fully grown.
