Word: fuel
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...Face it: there's no one fuel panacea, and in the final analysis, humans will have to scale back their numbers in order to live within a finite fossil- (or even renewable-) fuel world. And good luck with that. William L. Seavey, Cambria, California...
...Your cover story provides a distorted, inaccurate picture of biofuels. The overwhelming body of data demonstrates the carbon benefits of biofuels. For every unit of energy it takes to make domestic biodiesel, 3.5 units are gained, giving biodiesel the highest energy balance of any liquid fuel. In 2007 alone, biodiesel's contribution to reducing greenhouse-gas emissions was the equivalent of removing 700,000 passenger vehicles from America's roadways. The U.S. biodiesel industry strongly opposes rain-forest destruction and nonsustainable agricultural practices. Biodiesel increases our renewable-energy supply, adds well-paying, green jobs to the economy and reduces carbons...
...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 a model. Contrary...
...stopgap measure against extreme hunger also finds itself short of food. The WFP, the U.N.'s food-aid agency, headquartered in Rome, had budgeted $2.9 billion this year to buy food and distribute it to more than 70 million people worldwide. By late March, however, high food and fuel prices meant that those same planned operations were expected to cost an extra $500 million. Just one month later, says WFP executive director Josette Sheeran, the funding gap has now widened to $755 million. And that's before factoring in new programs that the WFP would like to launch, boosting...
...crunch? Prices for rice, wheat, corn and soybeans have soared in the last ten months as rising oil prices drove up food production costs: from the fuel to power farm machinery, to the hydrocarbon-based fertilizers, to the gasoline needed to transport food to stores. At the same time, demand for grains has grown as developed countries produce more biofuels from food-crop feedstocks, and as people in China and India take advantage of their rapid income growth and start eating more meat (which requires more grain to feed more animals). Add to that a few short-term weather shocks...