Translate the following English sentence to French:
"I would just like to add that the question from Mr Messner goes like this: "in the event that a new installation is to be built, the project that is the most and least environmentally friendly is to be examined" ."
Je voudrais ajouter que la question de notre collègue Messner contient la phrase suivante : " en cas de construction d' une nouvelle ligne, il convient d' étudier la solution ayant le plus faible impact sur l' environnement".