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...promise of biofuels like ethanol is that they will someday help the world grow its way out of its addiction to oil. Nine billion gallons of corn ethanol were produced in the U.S. in 2008, while countries like Brazil have already widely replaced gasoline with ethanol from sugar cane and countless start-ups are working to bring cellulosic and other second-generation biofuels to market. The reasoning is that if we use greener biofuels in place of gasoline, it will significantly enhance our effort to reduce greenhouse-gas emissions...

Author: /time Magazine | Title: Tallying Biofuels' Real Environmental Cost | 10/23/2009 | See Source »

...problem is that biofuels are treated as if they were 100% carbon neutral, even though they are clearly not. When ethanol is burned, for instance, it still releases CO2 into the atmosphere. After all, the plants that go to make biofuels are made of carbon, just as oil and other fossil fuels are. Further, the use of biofuels would reduce total greenhouse-gas emissions only if their creation were to increase - or at least not displace - existing plant growth, which naturally takes carbon out of the atmosphere. For example, if the wood chips left over from logging were used...

Author: /time Magazine | Title: Tallying Biofuels' Real Environmental Cost | 10/23/2009 | See Source »

...Pentagon has declared our dependence on fossil fuels a security threat. Veterans from Iraq and Afghanistan are traveling the country as part of Operation Free, campaigning to end our dependence on oil -- (applause) -- we have a few of these folks here today, right there. (Applause.) The young people of this country -- that I've met all across America -- they understand that this is the challenge of their generation...

Author: By June Q. Wu | Title: Obama Disses Harvard, Pushes Clean Energy | 10/23/2009 | See Source »

...There may be plenty of room for debate as to how we transition from fossil fuels to renewable fuels -- we all understand there's no silver bullet to do it. There's going to be a lot of debate about how we move from an economy that's importing oil to one that's exporting clean energy technology; how we harness the innovative potential on display here at MIT to create millions of new jobs; and how we will lead the world to prevent the worst consequences of climate change. There are going to be all sorts of debates, both...

Author: By June Q. Wu | Title: Obama Disses Harvard, Pushes Clean Energy | 10/23/2009 | See Source »

...that's far more efficient, far cleaner, and provide energy independence for America -- making the best use of resources we have in abundance, everything from figuring out how to use the fossil fuels that inevitably we are going to be using for several decades, things like coal and oil and natural gas; figuring out how we use those as cleanly and efficiently as possible; creating safe nuclear power; sustainable -- sustainably grown biofuels; and then the energy that we can harness from wind and the waves and the sun. It is a transformation that will be made as swiftly...

Author: By June Q. Wu | Title: Obama Disses Harvard, Pushes Clean Energy | 10/23/2009 | See Source »

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