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Startup Global Bioenergies uses genetic engineering to avoid one of the costliest steps in biofuel production.
A hydrocarbon-sorting material could replace energy-intensive oil refining steps.
The advanced fuel cell could eliminate range anxiety and make electric cars more practical, while keeping carbon-dioxide emissions low.
High crude prices, cheap natural gas, and U.S. demand boost heavy oil profits—and greenhouse gases.
Precise combustion control cuts fuel consumption by more than 30 percent.
A novel fuel-injection system achieves 64 miles per gallon.
California is about to implement a standard to boost cleaner fuels and punish the rest.
Vast amounts of the clean-burning fossil fuel have been discovered in shale deposits, setting off a gas rush. But how it will affect our energy use is still uncertain.