Aviation

Environmental groups claim victory as government agrees to include international aviation and shipping under legally binding emission targets

Conservatives claim they would attempt to overturn any government approval for new runways at Heathrow and Stansted

New Transport Secretary grants approval to 40 per cent increase in passenger numbers

Initial projects will look at viability of jatropha and algae as basis for jet biofuels

Conservatives pledge to scrap plans for a Heathrow third runway in favour of a £20bn high-speed rail link between London, Birmingham, Leeds and Manchester

Proposed airport in Thames estuary would cut noise and air pollution, and perhaps even promote rail travel

Consultation moves forward with final decision now expected before the end of the year

Improved aircraft design and air traffic management leads to three per cent cut in emissions since 2000

Web conferencing and rail increase in popularity due environmental concerns and rising fuel prices

Research claims simpler "climate compensation" model needed to tackle low customer awareness of offsetting