Tech

Who cares about climate change? Biden brings back E15 gas

Enlarge (credit: Aurich Lawson | Getty Images) The US looks set to use so-called “E15” gasoline throughout the summer. On Tuesday, President Joe Biden will announce that the US Environmental Protection Agency will issue a national emergency waiver allowing the use of the ethanol-gasoline blend between June 1 and September 15 as Americans complain about high […]

Tech

Porsche will start testing a lower-carbon biofuel in racing

Enlarge / Porsche is working on synthetic fuels and will begin testing them in racing as early as next year. (credit: Porsche) In the grand scheme of things, the fuel used by racing cars on track amounts to a mere rounding error compared to the carbon dioxide emitted by all the spectators driving to watch […]

Tech

Could we fuel our jets using our sewage?

Enlarge / A future green jet fuel? (credit: Picture Alliance/Getty Images) For many applications, liquid fuels remain the most practical energy supply—applications like aircraft and large ships being obvious examples. It’s possible to avoid using fossil fuels for these applications, since there are many ways of producing biofuels. But we can’t produce biofuels at a […]