On 1 December 1999 the European Commission declared itself in favour of defining more restrictive international standards for aircraft gaseous emissions. It takes the view that if no international negotiations are held it could be forced to set such standards at European level.
Dynamic scientific research is crucial. The aircraft which are built today use technologies developed some 10 to 15 years ago. The aim is to reduce fuel consumption along with pollution, without loss of efficiency, and to design aircraft which are both lighter and less noisy.