Word: ethanol
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...culprit in global warming are not supported by scientific facts or reliable statistics. Second, the growth rate of Brazilian emissions has been on the decline primarily because of decreasing rates of Amazon rain-forest deforestation, which is the main source of carbon emissions in Brazil, and increasing use of ethanol fuel. Furthermore, from 1970 to 2005 the use of ethanol in our energy mix has averted the emission of 644 million tons of CO2, the equivalent of Canada's annual emissions. When compared with the unsustainable energy patterns used in major developed countries, the Brazilian experience can be considered...
...trends. The first is the chronically low productivity of farmers in the poorest countries, caused by their inability to pay for seeds, fertilizers and irrigation. The second is the misguided policy in the U.S. and Europe of subsidizing the diversion of food crops to produce biofuels like corn-based ethanol. The third is climate change; take the recent droughts in Australia and Europe, which cut the global production of grain in 2005 and '06. The fourth is the growing global demand for food and feed grains brought on by swelling populations and incomes. In short, rising demand...
...Although it appears that corn ethanol may not manage to break even on the greenhouse gas balance sheet when its detrimental side effects are taken into account, biofuels from other sources deserve a close look...
...from a practical and environmental perspective, this source of ethanol looks more like a joker. For one, its meteoric rise in the United States (where ethanol production has quintupled over the last decade) and around the world has diverted a large portion of an important food crop at a time when demand for food is soaring. This notable hurdle has everything to do with the decision to rely on corn supply: While the production of most biofuels requires land that would otherwise be used for crops, one acre of corn produces 328 gallons of ethanol, compared to 662 gallons...
...equivalent of taking about eight average American cars off the road. That isn’t bad for one relatively small college. Moreover, soy-derived biodiesel is a byproduct of soybean processing, and its production does not decrease the food supply as greatly as that of corn or sugarcane ethanol...