Translate the following English sentence to French:
"In its communication on air transport and the environment, the Commission maintains that the aviation industry needs to increase its efforts to improve the environmental quality of new aircraft being built."
Dans sa communication sur le transport aérien et l' environnement, la Commission soutient que l' industrie de l' aviation doit redoubler d' efforts pour améliorer la qualité environnementale des nouveaux avions qu' elle construit.