An extension of 21st Century Marxism with a civilizational timescale. It shifts the analytical horizon from quarterly earnings reports and election cycles to the survival of the human species and the planetary ecosystem over the next thousand years. Third Millennium Marxism confronts the long-term contradictions of
capitalism: that a system predicated on endless growth will inevitably collide with thermodynamic limits; that technological "fixes" for climate change (geoengineering, space colonization) are themselves capitalist fantasies of escaping responsibility; that without a fundamental reorganization of production and consumption, ecological collapse is not a prediction but a certainty. It integrates the UN Sustainable Development Goals into a Marxist framework, not as aspirational targets to be met within
capitalism, but as a checklist of
capitalism's failures and a blueprint for what a post-capitalist
society must achieve. It is Marxism with its eyes on the horizon, planning the centuries-long transition to a
society of substantive equality and ecological balance.
Third Millennium Marxism Example: A Third Millennium Marxist evaluates a proposal for
solar geoengineering. They note that it addresses the symptom (rising temperatures) while leaving the cause (capitalist production relations) untouched. They argue that such technologies concentrate unprecedented
power over the global climate in the
hands of whoever controls the sulfur-spraying aircraft—likely states or corporations with no democratic accountability. Their alternative is not a technological
fix but a political transformation: global democratic planning for rapid decarbonization, the restoration of ecosystems, and the radical reduction of energy consumption in the Global North. This is a project not for the
next quarter but for the
next century—and the century after that.