Search Details

Word: biofueled (lookup in dictionary) (lookup stats)
Dates: during 2000-2009
Sort By: most recent first (reverse)


Usage:

...according to a pair of studies published in the journal Science recently, biofuels may not fulfill that promise - and in fact, may be worse for the climate than the fossil fuels they're meant to supplement. According to researchers at Princeton University and the Nature Conservancy, almost all the biofuels used today cause more greenhouse gas emissions than conventional fuels, if the full environmental cost of producing them is factored in. As virgin land is converted for growing biofuels, carbon dioxide is released into the atmosphere; at the same time, biofuel crops themselves are much less effective at absorbing carbon...

Author: /time Magazine | Title: The Trouble With Biofuels | 2/14/2008 | See Source »

Many environmentalists have been making the case against biofuels for some time, arguing that biofuel production takes valuable agricultural land away from food, driving up the price of staple crops like corn. But the Science papers make a more sweeping argument. In their paper, Fargione's team calculated the "carbon debt" created by raising biofuel crops - the amount of carbon released in the process of converting natural landscapes into cropland. They found that corn ethanol produced in the U.S. had a carbon debt of 93 years, meaning it would take nearly a century for ethanol, which does produce fewer greenhouse...

Author: /time Magazine | Title: The Trouble With Biofuels | 2/14/2008 | See Source »

Worse, as demand for biofuels go up - the European Union alone targets 5.75% of all its transport fuel to come from biofuel by the end of the year - the price of crops rises. That in turn encourages farmers to clear virgin land and plant more crops, releasing even more carbon in a vicious cycle. For instance, as the U.S. uses more biodiesel, much of which is made from soybeans or palm oil, farmers in Brazil or Indonesia will clear more land to raise soybeans to replace those used for fuel. "When we ask the world's farmers to feed...

Author: /time Magazine | Title: The Trouble With Biofuels | 2/14/2008 | See Source »

...Others saw in the devastation a blank slate on which Greensburg could build back better, by building back greener - energy-efficient homes and offices, powered by Kansas's abundant wind and biofuel resources. The heartland community could become a mecca for environmentalists, including green businesses that would bring jobs. "This is an amazing opportunity," says Daniel Wallach, an entrepreneur from a nearby town who formed the non-profit Greensburg GreenTown. "It could be a living laboratory to demonstrate to the rest of the country and the world what a town of the future could look like...

Author: /time Magazine | Title: Turned Green by a Twister | 2/3/2008 | See Source »

...world order in which the alchemy of life is broken down into the ultimate engineering project. Man-made genomes could lead to new species that churn out drugs to treat disease, finely tuned vaccines that target just the right lethal bug, even cells that convert sunlight into a biofuel...

Author: /time Magazine | Title: Scientist Creates Life — Almost | 1/24/2008 | See Source »

Previous | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | Next