Everyday trash, food waste, and even discarded metal and rubber scraps can be used as a source of sustainable aviation fuel, Harvard researchers concluded in a new study published last month in the journal Nature Sustainability.
The researchers from the Harvard-China Project on Energy, Economy, and Environment and Tsinghua University in Beijing found that solid municipal waste can be transformed into liquid-based feedstock — shown to significantly reduce greenhouse gas levels compared to regular jet fuel. Waste, they found, can also be more reliable and less expensive than other sustainable fuels.
The researchers said their goal was to find ways to reduce carbon emissions in aviation, which currently contributes to around 2.5 percent of total global carbon emissions.
Jingran Zhang, a…
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