Biofuel

London taxi firm adds 20 biofuel-powered vehicles to its 200 Toyota Prius

United service from Houston to Chicago to be closely followed by biofuel flights from Alaska Airlines

Report from Military Advisory Board says US must reduce energy imports over the next decade as a national security imperative

Gatwick chairman David Rowlands said aviation companies need to show how they can reduce carbon emissions

New fuel promises half the lifecycle emissions of standard jet fuel and could be used in international flights by 2014

Company rejects claims of 'PR stunt' and defends sustainability of fuel ahead of first planned commercial flights

Applying levies by volume rather than calorific content makes greener fuels comparatively more expensive than petrol or diesel

New biorefinery facility in Norwich teams up with iconic UK company to produce second-generation biofuels

New research funding designed to deliver jet biofuels made from sustainable energy crops

Swansea University leads £12m initiative to create best practice guidelines for investors in next-generation biofuels