The cause is a predominantly linear economy: after use and end-of-life, the product is not thought through and designed to be "recyclable" or second-hand. The problem is products with a short lifespan or single use.
A product designed to save resources has less and less place in the transition to a green economy. The economy of functionality is now much more widely considered, replacing the notion of selling the good with that of selling the use of the good, thereby decoupling added value from the consumption of energy and raw materials. This is part of the circular economy.
The aim is also to understand the impact and define the first actions to limit it.