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Articles on Net zero emissions by 2050

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Some airlines are already experimenting with sustainable aviation fuel. Michael H/Stone Collection/Getty Images

The future of flight in a net-zero-carbon world: 9 scenarios, lots of sustainable aviation fuel

Airlines are investing in sustainable biofuel startups and starting to uses alternative fuels, including cooking oil, ag waste and corn ethanol. But biofuels alone won’t be enough, research shows.
Developing countries are calling for more funding and for changes at the World Bank. Sean Gallup/Getty Images

4 signs of progress at the UN climate change summit

The biggest issues at COP27 involve financing for low-income countries hit hard by climate change. A former World Bank official describes some promising signs she’s starting to see.

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