Everyone from leading Silicon Valley venture capitalists to former President Bush is touting fuels created from biomass as a replacement for petroleum. But new technologies are needed to make this vision economically and environmentally feasible.
A new strain of bacteria could make cellulosic ethanol cheaper.
Making ethanol from corn is expensive. Better biofuels are years away from the gas tank. Farmers are reluctant to change their practices. But do we really have any alternative to biofuels?
A biotech startup wants to coax fuels from engineered microbes.
Researchers find a way to make liquid fuels from waste cheaply and without the pollution produced by earlier methods.
Genetically modified algae could be efficient producers of hydrogen and biofuels.
A metagenomic study could suggest ways to make cellulosic ethanol.
Commercial-scale plants are being built, but the fuel could still be too expensive to compete with corn ethanol.
Forget ethanol: it's hard to transport and gives bad mileage per gallon. Another alcohol, butanol, is a much better renewable fuel, says the president of BP Biofuels.
Startup Kior has developed a process for creating "biocrude" directly from biomass.
A California biotech company is engineering microbes to produce cheap biofuels that could outcompete ethanol.
Bacteria in termite guts could make ethanol from noncorn sources cheaper.
A new catalytic process efficiently converts biomass to syngas.
A catalytic process could improve thermochemical routes to ethanol.
A 1.4 million gallon demonstration-scale plant will use waste biomass to make biofuel.
Gene sequencing could help make more energy-efficient biofuels practical.
Congress ends without funding research programs, as the United States falls behind in alternative technologies.
Propane chemically derived from corn could be used in heating and transportation.
Gregory Stephanopoulos explains challenges in converting biomass to biofuels.
A simple new process generates hydrogen for fuel cells.
Rain and floods in the corn-growing Midwest could drive up the costs of producing the biofuel.
The genetically-modified plants break down their own cellulose, making it possible to use waste biomass to produce ethanol.
California-based Amyris has used breakthroughs in synthetic biology to reinvent biofuels. To turn its technology into an industrial process, it has headed to the land of sugar: Brazil.
Fuel made from waste by-products could lower greenhouse gas emissions.
ZeaChem starts construction in Oregon, but plans elsewhere have stalled or been scaled back.
The startup LS9 reveals a discovery that could lead to biofuels that would work in conventional engines.
A way to get a high-energy fuel out of an abundant and renewable resource.