The document discusses the concept of a circular economy as a more sustainable alternative to the traditional linear economy. A circular economy aims to reuse resources in a renewable way by employing the four R's - reduce, reuse, recover and recycle. While the circular economy model was not widely popular in the past, greater environmental awareness has led people to realize that transforming consumption habits is necessary. The four R's teach reducing unnecessary consumption, reusing products more than once, recovering resources even after reducing and reusing, and ultimately recycling any wasted materials. The document stresses that maintaining a sustainable environment is a collective responsibility.