Brussels, 01/02/2012 (Agence Europe) - Half of all European airline passengers transit through airports which have pledged to reduce their CO2 emissions. These are part of the Airport Carbon Accreditation programme, an initiative of the Airports Council International (ACI Europe) launched in 2009. There are now 55 airports, categorised according to certification value scale from cartography to neutral, via reduction and optimisation. The best result has been achieved by the Swedish airport...