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Electric planes, new fuel: Can Heathrow's third runway be green?

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Chancellor Rachel Reeves announced the decision in a speech on measures aimed at improving economic growth.

She said a third runway would mean fewer planes circling over London as pilots wait to land at Heathrow Airport .

But independent adviser on cutting emissions has warned against airport expansion without a framework in place to manage overall national capacity.

Additional reporting by Gerry Georgieva and Mark Poynting Sign up for our Future Earth newsletter to get exclusive insight on the latest climate and environment news from the BBC 's Climate Editor Justin Rowlatt , delivered to your inbox every week . Outside the UK ? Sign up to our international newsletter here..