The government is being forced to take tougher action on air pollution because of EU rules, so how clean will our air be without them?
Simon Blakey of the University of Sheffield explores some of the challenges that will need to be overcome if green aviation is to take-off
ETI survey shows support for bioenergy similar to that of solar and offshore wind, but reveals on-going concerns about that biomass production's potential impact on food supplies
Department for Transport emphasises future role of waste-based and advanced biofuels and but draws criticism for capping supply of crop-based biofuels