AGNR 301 Lecture Notes - Lecture 23: Corn Stover, Cellulosic Ethanol, Habitat Destruction
4 Dec 2017
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Document Summary
Beneficial biofuels- the food, energy, and environment trilemma. Biofuels done right can be made in substantial quantities, and can be derived from feedstocks such as: 1)perennial plants grown on degraded lands abandoned from agricultural use (minimizes competition with food crops, using the degraded lands can increase wildlife habitat and improve water quality) Ex: corn stover and straw from rice and wheat, good for maintaining soil fertility and carbon stores. 4)double crops and mixed cropping systems. (can produce biofuel feedstocks without decreasing food production and without clearing wild lands) 5)industrial and municipal wastes. (organic matter: paper, cardboard, plastics can be converted to liquid fuels) Indirect land use can lead to extra greenhouse gas emissions, biodiversity loss, and higher food prices. Is there a road ahead for cellulosic ethanol. By 2022, lawmakers envision cars burning up to 36 billion gallons of biofuel a year.
