ENV200H1 Chapter Notes - Chapter 7: Vitamin A Deficiency, Wild Fisheries, Net Energy Gain
Document Summary
Thyroxin = an endocrine hormone that regulates metabolism and brain development. Fats are essential for healthy skin, cell function, and metabolism (cid:173) More production doesn"t necessarily reduce hunger (cid:173) most strategies for reducing world hunger include: Increasing efficiency of farm production: expanding use of fertilizers and improved seeds, converting more unused land or forest to agriculture. There are inefficiencies in food use: food is spoiled in storage and transit, used inefficiently, or thrown away after preparation. Inefficient foods = foods require more animal feed than is produced in food (e. g. , meat) (cid:173) Free from restraints, so traders gamble on the value of future crops. Increases the price of current crops well beyond their actual value. Increases the price of farm land: biofuel production. Biofuels have boosted commodity prices (cid:173) new policies promoting biofuels. Using crops such as soy, corn, palm oil, or sugar cane to drive our cars is an important strategy for supporting farm economies in wealthy countries.
