https://frictions.co/english/linsoutenable-legerete-du-labeur/working-ourselves-clean/
https://www.esri.ie/system/files/publications/SUSTAT95_0.pdf
https://www.esri.ie/system/files/publications/RS181_0.pdf
https://www.elysee.fr/emmanuel-macron/2020/05/26/plus-verte-et-plus-competitive-notre-plan-de-soutien-a-la-filiere-automobile