Aviation

Both Eurostar and Spanish rail network release new figures suggesting travellers increasingly prefer high-speed rail to flights

Boris Johnson has confirmed he will back and fund legal fight by alliance of London councils is third runway gets green light

Brussels to sue over PM10 breaches in move that could prove first step in wave of legal actions

Plans for 200mph rail lines centred on new Heathrow hub seen as green " sweetener" for third runway

Prime minister to force through approval for Heathrow expansion despite ministerial objections

One of the worst kept secrets in Westminister finally out after environment secretary signals concerns over Heathrow third runway

Tories claim postponement suggests government is realising it is "on the wrong side of the debate"

As climate change committee puts finishing touches to first wave of carbon budgets, chairman insist low carbon ambitions must not be diluted

Mayor says he will contribute £15,000 to local authorities' planned legal challenge, if Heathrow expansion is given green light

Prime minister meets backbench MPs in attempt to address concerns over potential impact of Heathrow expansion on government's green credentials