For Reference: UN General Assembly High-Level Week, September 2026
Subject: A Manifesto for the Martian Biosphere: Systemic Resilience, Global Governance, and the Multi-Planetary Imperative
Decades ago, I contributed voluntarily to a joint initiative between The Planetary Society and the Jet Propulsion Laboratory, mapping the theoretical frameworks required to terraform Mars. What was then an exploratory exercise in planetary science has now matured, through advanced computational modeling and AI-driven atmospheric simulations, into a pressing imperative for global governance.
As we convene for the 2026 High-Level Week, the international community must recognize that expanding Earth’s biosphere is no longer a speculative fiction, but a quantifiable necessity for systemic resilience.
Here is the definitive case for initiating the ecological transformation of Mars, grounded in physics, economics, and a non-anthropocentric mandate.
I. The Thermodynamic and Economic Reality
When evaluating the celestial bodies of our solar system from a strict cost-benefit matrix, Mars is the unequivocal and sole viable candidate for near-term biospheric expansion.
The most in-depth thermodynamic models demonstrate that Mars holds a unique ‘MVP Journeys ®’ threshold. By elevating the Martian atmospheric pressure by a mere fraction of a millibar to cross the triple point of water (6.11 mbar at 0.01 ℃), we trigger passive, runaway feedback loops.
Unlike Venus, which requires the economically catastrophic removal of a 92-bar atmosphere, or the Moon, which lacks the gravity to hold one, Mars can be transformed using highly energy-efficient, in-situ resources:
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Phase 1 (The Thermal Trigger): The deployment of orbital solar reflectors or engineered atmospheric nanoparticles can vaporize the CO₂ locked in the southern polar cap. This requires minimal transport mass from Earth, leveraging the sun's energy to thicken the atmosphere and warm the equator past freezing within a single century.
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Phase 2 (Accelerated Eco-Poiesis): Synthetically engineered extremophiles and bio-CRISPR modified flora can remediate toxic perchlorates and exponentially accelerate the conversion of CO₂ to oxygen, compressing a multi-millennial biological process into centuries.
The physics are settled. The barrier is no longer technological; it is a matter of unified, directed global effort.
II. The Ecological Imperative: A Non-Anthropocentric Vision
We must fundamentally reframe our motivation for space exploration. Terraforming Mars cannot merely be a lifeboat for humanity or a frontier for resource extraction. If our leadership paradigms remain strictly anthropocentric, we will replicate the systemic frailties we currently face on Earth.
Instead, we must put the immense, vibrant biomass that populates this planet back at the heart of our cosmic endeavours. Humanity’s highest evolutionary purpose is to act as a planetary keystone species—the vector through which Earth’s broader ecology reproduces itself across the solar system.
By prioritizing the transport and cultivation of foundational ecosystems—fungi, microbes, engineered lichens, and ultimately flora and fauna—we build true systemic resilience. A terraformed Mars represents a genetic and ecological backup of Earth's biodiversity, ensuring that the tree of terrestrial life survives the localized threats of our home world.
III. The Mandate for Global Governance
The realization of a second living world cannot be left to the fractured, zero-sum dynamics of competing nation-states or the unilateral ambitions of private enterprise. The magnitude of planetary-scale engineering requires an unprecedented evolution in global governance.
UNOOSA must take the lead in architecting a unified, interplanetary legal and operational framework. This framework must:
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Declare the Martian atmosphere and hydrosphere as a Global Commons, managed collectively by the international community for the benefit of all Earth-originating life.
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Establish a unified timeline and resource allocation model, pooling the AI, aerospace, and biological engineering capacities of member states to execute Phase 1 of the Martian terraforming sequence.
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Draft the "Keystone Protocols," ensuring that the biological seeding of Mars prioritizes ecological stability and non-anthropocentric bio-diversity over immediate commercial exploitation.
Conclusion
We stand at a unique juncture in the history of our planet. The models are clear, the economic pathway is viable, and the timeline is within our grasp. I urge the delegates of the 2026 UN High-Level Week to elevate the conversation beyond low-Earth orbit. It is time to embrace a leadership paradigm that secures the long-term, systemic resilience of Earth’s entire biological inheritance.
Mars is waiting. It is time to bring it to life.
Lee Vallance
Master of Global Management | Specialist in AI & Systemic Resilience | Enduring Planetary Society Member
1 comment
An analysis and fact-check of the blog post “To: The United Nations Office for Outer Space Affairs (UNOOSA) – A Manifesto for the Martian Biosphere” by Lee Vallance reveals a mix of scientifically accurate concepts, speculative engineering claims, and policy assertions.
Fact-Check Breakdown
1. Technical & Scientific Claims
Claim: *Crossing Mars’s water triple point (6.11 mbar at 0.01 °C) triggers passive runaway greenhouse feedback loops.
Fact Check (Partially Accurate / Simplified): The triple point of water (6.11 mbar at 0.01 ℃) is indeed the physical threshold where liquid water can stably exist on the Martian surface without immediately boiling off or freezing. However, the scientific consensus (such as the landmark 2018 NASA-sponsored study published in Nature Astronomy by Jakosky & Edwards) indicates that Mars does not contain enough accessible CO₂ to sustain a runaway greenhouse effect to significantly warm or thicken the atmosphere using in-situ resources alone.
Claim: Phase 1 deployment of orbital solar reflectors or engineered atmospheric nanoparticles can vaporize polar CO₂ with minimal transport mass.
Fact Check (Theoretical / Speculative): Large-scale orbital mirrors or engineered aerosols (like metallic nanoparticles proposed in recent study literature) are theoretically valid concepts in planetary engineering models, but they remain untested engineering challenges that require massive logistics and energy well beyond current capabilities.
Claim: Phase 2 eco-poiesis using synthetically engineered extremophiles and bio-CRISPR modified flora to remediate perchlorates.
Fact Check (Scientifically Grounded but Early-Stage): Martian regolith does contain toxic perchlorates (0.5%–1.0%), and certain terrestrial bacteria (such as Dechloromonas agitata) are capable of breaking down perchlorates. Synthetic biology approaches to adapt such microbes for low-pressure, high-radiation environments are actively studied, but field-ready organisms do not yet exist.
2. Legal & Governance Claims
Claim: UNOOSA must declare the Martian atmosphere and hydrosphere a Global Commons and draft “Keystone Protocols.”
Fact Check (Policy Concept / Contextual):
Under the current Outer Space Treaty of 1967 (Article II), outer space (including Mars) is not subject to national appropriation by claim of sovereignty, making it effectively a commons under international law.
UNOOSA serves as the secretariat for the UN Committee on the Peaceful Uses of Outer Space (COPUOS) and facilitates space law discussions, but it does not possess unilateral executive authority to draft binding global treaties or mandate resource allocation without treaty consensus among UN member states.
3. Author Claims & Framing
Claim: Contributed voluntarily to a joint initiative between The Planetary Society and JPL on terraforming frameworks.
Fact Check (Verified / Personal Narrative): The Planetary Society and NASA JPL frequently host open educational initiatives, public projects, and computational contests. While individual participation in public outreach or citizen science campaigns is common, the post presents no specific project name or publication citation to independently audit.
Key Takeaway
This blog post functions as an opinion manifesto/policy essay rather than a factual news report or peer-reviewed scientific paper.
What is accurate: The underlying thermodynamic definitions (e.g., the triple point of water) and fundamental space law principles regarding common heritage.
What is speculative: The feasibility, timeline, and ease of triggering runaway terraforming loops on Mars, which current NASA/planetary science models show are not achievable with Mars’s present CO₂ inventory alone.