Beachside piña coladas could soon taste a bit sweeter for climate-conscious vaationers, thanks to a new jet fuel that scientists say slashes aircraft emissions. The kerosene alternative was developed by US researchers, who used a process known as bio-refining to turn food waste into a kind of paraffin that works in aircraft engines. The team behind the fuel claim it reduces greenhouse gas emissions from planes by 165 percent. That figure comes from the reduction in carbon emitted from jets plus the emissions that are saved when food waste is diverted from landfill, where it emits methane, a potent greenhouse gas. Scientists behind the new fuel say it could be commercially viable within two years, pending regulatory approval.

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