The need to save fuel is a no-brainer for airlines from an economic perspective, and it has a knock-on effect of reducing aviation's impact on the environment. We examine some of the techniques airlines are adopting to minimise fuel burn. Plus, the unenviable task of attempting to forge a global emissions trading framework, and an update on the US Air Force's use of blended fuels.
Lean, mean flying
ICAO's pressure to deliver a global emissions scheme
USAF confident of meeting 2011 blended fuel target
Aviation is a visible target in the debate over global warming. Picture: Image Source/Rex Features