Heathrow

Research suggests a new runway would mean severely curtailed growth outside the South East if UK is to meet binding emissions targets

Defra forecasts show airport will enter top 50 for nitrogen dioxide levels by 2025, even without a new runway

Campaign group says Airports Commission has not gathered full range of evidence on the environmental implications of new UK runways

Airport commission says proposals will cost up to £3.4bn more than estimated, meaning higher fares for passengers are likely

Panel tasked with deciding on additional runways in the south-east rules out mayor's plan for hub in the Thames estuary

Report triggers controversy after press release appears to have been sent to Heathrow and back before being issued to rivals

Wide-ranging new report argues the UK needs more airport capacity, but it must come hand-in-hand with green innovation

WWF and RSPB reports argue emissions growth from a new runway would mean crippling carbon cuts for the rest of the economy

BusinessGreen Plus follows the supply chain for the airport's new biomass energy centre

Environmentalists may be wary of the airport's expansion plans, but Heathrow is about to take a big step towards cutting its carbon emissions