Word: biodiesel
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...draft conclusions announced by Environmental Protection Agency (EPA) administrator Lisa Jackson were that cellulosic ethanol and other next-generation renewables will dramatically reduce greenhouse-gas emissions over their entire life cycle, but that in some scenarios, corn ethanol (as well as lesser-used soy biodiesel) can produce even more emissions than gasoline. Some environmentalists and journalists have portrayed this as a courageous rebuke to the powerful agro-fuels lobby, while some advocates for farmers have complained that the stress tests were too tough. At a hearing after the announcement, House Agriculture Committee chairman Collin Peterson, a Minnesota Democrat, accused...
...starkest example of the problems with the analysis is the time horizon. When the EPA studied a reasonable 30-year time period, even with its generous assumptions, soy biodiesel and corn-ethanol plants powered by coal or natural gas actually produced more emissions than gasoline; corn ethanol only passed the stress test (and just barely) when powered by the cleanest possible power. And that analysis assumed it's a good trade-off to accept massive emissions today in exchange for reductions over 30 years, when in fact massive emissions today could help trigger devastating ice melts and other feedback loops...
...earth to plant jatropha seedlings. Burmese state television shows an inordinate number of ribbon-cutting ceremonies and ground-breaking rituals, in which military men inaugurate the latest project and broadcasters congratulate their efforts. Eventually, as so often happens in Rangoon, the power failed and the T.V. screen went black. Biodiesel may already be contributing to a green solution in some parts of the world, but it hasn't saved Burma...
...This is a superior biodiesel," says Roy Beckford, a University of Florida researcher and expert on sustainable farm development. He has been studying different varieties of jatropha and in February plans to publish his findings that trees like those the Daltons are growing (since 2006 they've planted 900,000 near Fort Myers) thrive so well in Florida that they may yield up to eight times as much oil as they do in places like India and Africa. That translates into as much as 1,600 gal. of diesel fuel per acre per year, vs. 200 gal. for stocks that...
This news is likely to be the buzz at the National Biodiesel Conference, which convenes in San Francisco on Feb. 1. Given how record diesel-fuel costs literally drove up food prices last year--tractors and delivery trucks run on diesel--suppliers hope the new Administration will consider jatropha as stimulus-worthy as wind or solar power...