Artikel-artikel mengenai Biofuels

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A medium-size passenger jet burns roughly 750 gallons of fuel per hour. www.shutterstock.com

Jet fuel from sugarcane? It’s not a flight of fancy

Scientists have engineered sugarcane to increase its oil content and are developing renewable jet aircraft fuel from the oil. The engineered sugarcane could become a valuable energy crop.
Polysaccharide molecules such as cellulose, seen here, are long chains of sugars that are very hard to break apart. Enzymes – proteins that can degrade polysaccharides – have many industrial uses. CeresVesta/Wikipedia

Scientist at work: Bio-prospecting for better enzymes

Bio-prospecting is the search for useful materials from natural sources. A biologist explains what we can learn from bacteria about breaking down plant material, and how we can use that knowledge.
Soybeans and corn are two of the most widely planted crops in the United States and the main feedstocks used to make biofuels. www.shutterstock.com

Biofuels turn out to be a climate mistake – here’s why

A new study challenges the longstanding view that biofuels are carbon-neutral, and asserts that in the U.S. to date, they have done more harm to the climate than gasoline.
Ethanol made from corn goes into our gas tanks. Now refiners who pay for the subsidy are complaining of rising costs. armydre2008/flickr

Who should pay for our corn ethanol policy – Big Oil or gas stations?

A fight's breaking out over who should pay subsidies for corn ethanol, and it is consumers who may end up paying for any changes.
A White House proposal to tax crude oil would address the U.S.‘s perennially underfunded highway maintenance program. scottummy/flickr

How should America fund its highways in the 21st century?

Obama's proposal to add $10 tax to crude oil raises the thorny question of whether the U.S. can continue to fund its highway infrastructure with a fuel tax that hasn't changed since 1993.
Before there was E10, in the 1970s there was ‘gasohol,’ another name for gasoline that had been blended with ethanol. eklektikos/flickr

Corn ethanol: the rise and fall of a political force

Ted Cruz opposes subsidies for biofuels and still managed to win in ethanol-friendly Iowa. Is corn ethanol starting to lose its political clout?
An excavator clears land for a palm oil plantation in southern Sierra Leone for a Lichtenstein-based a company. Such projects are criticised by some as ‘land grabs’. Reuters/Simon Akam

How a project with good aims delivered bitter outcomes in Sierra Leone

International development banks are supposed to ensure adherence to human rights in the projects they fund. Instead, their practices provide fertile ground for human rights abuses.
An ancient form of energy: a wood pellet manufacturing facility in upstate New York. thewildcenter/flickr

Does bioenergy have a green energy future in the US?

The future of two key energy policies – the EPA's Clean Power Plan and Renewable Fuel Standard – will decide whether bioenergy will continue to grow in US or not.

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