You've certainly heard people downplaying the importance of putting things in the recycling bin, because "it all ends up in the trash anyway". It is completely false. ❌
In fact, a part (about 21% in 2018) is found there, yes, but mainly because these are materials that shouldn't have been put in the bin in the first place : contaminated materials, hard-to-separate multi-material products, unidentified plastics, tires, toys, etc 🤷
The solution to reduce this share? Education, always education! 👩🏫 All the details in this publication from Agence Science-Presse.