Aviation

Green Party calls on London Organising Committee to review purchasing policies, after Arkansas firm bags major ticketing contract

Statement confirms Chinese airlines' non-participation in EU emissions trading scheme

Latest move likely to heighten transatlantic tensions over charges for emitting CO2

Government body orders all domestic airlines and large airports to monitor CO2 output ahead of possible national registry

New production method promises to save cost and energy as Etihad becomes latest airline to trial biofuels

MPs warn policy will push polluters overseas and call on government to embrace European-wide efforts to boost carbon price

Reports suggest Conservatives and Lib Dems are already clashing over controversial plans for new airport

Airline insists modest levy is needed to cover €15m cost of complying with EU emissions trading scheme

Historic flight planned as German carrier calls halt to domestic trial that has saved 1,471 tonnes of CO2 since July

Industry body fires first shot in potential trade war with declaration of non-compliance