Latin prefix infra: below, within, under.
Structure: to construct; the aggregate of elements of an entity in their relationships to each other.

Good (and necessary) environmental stewardship is not just a policy choice; it is an ethical and moral imperative. Ethical behavior means more than simply reducing waste—it means dismantling the systems that create it. It means challenging the cultural glorification of consumption, rejecting the economic structures that demand perpetual growth, and embracing a vision of society that values repair, reuse, and regeneration over our present, throw-away mindset writ large. — Richard Daley. 

Full essay here.