Aviation

Lightweight seats and trolleys reduce weight of each flight by 250kg, putting company on track to meet fuel efficiency targets

The sectors account for more than five per cent of global emissions yet were not allocated in the Lima accord

Parallel hybrid-electric propulsion system uses 30 per cent less fuel than conventional planes, researchers say

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

Nour Amrani of Novozymes on the implications of the EU's proposed framework for a commonly overlooked sector

Announcement due at Lib Dem conference where party is due to vote on plans to back expansion of Gatwick Airport and pledge to ban coal power plants from 2025

Carrier completes first transatlantic flight on biofuel blend and eyes fuel hub in Helsinki

New book by Naomi Klein claims that Virgin founder gave less than a tenth of cash promised to develop low carbon fuel

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