Have we all become more virtuous, more concerned about our Blue Planet, which looks pale with its hole in the ozone or the melting of both ice caps? Apparently so. The anger of the younger generation, carried by Greta Thunberg, the icon of the fight against climate change, had already paved the way. The Covid-19 crisis combined globalisation and a health crisis to change mentalities on a global scale.  In any case, there are countless studies, surveys and statements as proof. In July, Cap Gemini Research questioned 7,500 consumers worldwide and 750 business leaders. 79% of those questioned had sustainable development as a priority. 67% said they were more cautious about the scarcity of natural resources. 64% added that buying susta...