Synthesized answer
The provided passages do not directly address the practical implications of the arguments in *Not in Our Genes*. Instead, they summarize the related book *The Ecological Rift*, which argues that the ecological crisis stems from a "rift in the metabolic relation between humanity and nature that is irreparable within capitalist society" [Passage 2]. The practical implication given there is that "fundamental changes in social relations must occur" to transcend ecological and social problems, and the authors "offer reasons for revolutionary hope in moving beyond the regime of capital and toward a society of sustainable human development" [Passage 1].
However, because the question asks about *Not in Our Genes* specifically, and the passages only mention that book's authors (Lewontin, Rose, and Kamin) in a footnote about related works [Passage 1], the passages contain no information about the practical implications of *Not in Our Genes* itself. To answer fully, one would need additional passages from that book.
Synthesized from the book passages below. Chat with the book on Feynman for follow-up.
From the book
t in the metabolic relation between humanity and nature that is irreparable within capitalist society, since integral to its very laws of motion. Critically examining the sanguine arguments of mainstream economists and technologists, Foster, Clark, and York insist instead that fundamental changes in social relations must occur if the ecological (and social) problems presently facing us are to be transcended. Their analysis relies on the development of a deep dialectical naturalism concerned with issues of ecology and evolution and their interaction with the economy. Importantly, they offer…
Title: The Ecological Rift by John Bellamy Foster, Richard York, Brett Clark Description: Humanity in the twenty-first century is facing what might be described as its ultimate environmental catastrophe: the destruction of the climate that has nurtured human civilization and with it the basis of life on earth as we know it. All ecosystems on the planet are now in decline. Enormous rifts have been driven through the delicate fabric of the biosphere. The economy and the earth are headed for a fateful collision—if we don’t alter course. In The Ecological Rift: Capitalism’s War on the Earth…