Little has changed in 50 years:
![](https://www.uecna.eu/wp-content/uploads/2018/03/First_UECNA_doc_year_Oct_1968_nine-demands2.jpg)
Below you see the 1969 speech ‘La Pollution Atmosphérique par les Avions‘. We found this document in our archives, in this year that we exist 50 years.
A speech on the occasion of our one-year anniversary, about the pollution of aircraft engines. Even if you don’t speak French, the tables are clear.