Heathrow aims to make third runway carbon neutral

Exclusive: Plan also targets local air and noise pollution but critics say long-term solutions to environmental challenges are no closer to reality

The huge growth in flights from Heathrow's planned new runway could be carbon neutral, according to an ambition revealed by the airport.

The 260,000 extra flights a year anticipated from the third runway would make the airport the UK's largest source of carbon emissions. But Heathrow's new sustainability plan suggests other ways to offset the leap in emissions, including by restoring British peat bogs.