What does this research mean for the field?

Climate and Earth systems can be accurately modeled as a multi-dimensional information flow network within the Information-Theoretic Unification framework, successfully reproducing established empirical findings on climate sensitivity, tipping points, and mitigation pathways. Novelty: ClaimNovelty.METHODOLOGICAL. Consensus alignment: ConsensusAlignment.SUPPORTS_CONSENSUS.

What question did this study set out to answer?

The aim is to apply the Information-Theoretic Unification (ITU) framework to analyze climate and Earth systems. It seeks to identify critical interconnections and develop a mitigation roadmap.

May 17, 2026Open Access

ITU and Climate / Earth Systems: A Single-Axiom View of Atmospheric Information, Earth Energy Imbalance, Planetary Boundaries, Tipping Points, and the 2026-2100 Mitigation Roadmap (v1.0.0)

Key Points

The aim is to apply the Information-Theoretic Unification (ITU) framework to analyze climate and Earth systems. It seeks to identify critical interconnections and develop a mitigation roadmap.
Analyzed climate dynamics using the ITU framework and its polytope structure.
Assessed Earth's energy imbalance and feedbacks in the carbon cycle using empirical data.
Developed future scenarios for emissions and temperature under various mitigation strategies.
Identified 7 of 10 planetary boundaries breached as of 2023.
Projected that renewables could provide 72% of global electricity by 2050 with significant cost reductions.
Forecasted various temperature peaks and tipping point probabilities based on different mitigation scenarios.

Abstract

We apply the Information-Theoretic Unification (ITU) framework (Terada 2026, DOI 10. 5281/zenodo. 20109210) to climate and Earth systems science. Climate is reframed as the macroscopic K-state of the Earth system; CO2 increase is information injection into Kₐtm; Earth Energy Imbalance is K-current accumulation. This is Tier 1 paper #11, opening the biosphere axis and bringing the ITU polytope to 11 vertices, where the Climate vertex achieves the highest connectivity degree (6) — the polytope's super-hub. Pass-1 progress: 86 of 220 phases (39. 1%). Phase 83: ITU foundation. CO2 422 ppm (2024, +51% over preindustrial), radiative forcing 2. 19 W/m² (IPCC AR6 2xCO2 = 3. 93 W/m²). Earth Energy Imbalance = 1. 00 W/m² = 510 TW = 28x human energy consumption (18 TW), 89% accumulating in oceans (534 ZJ cumulative since 1970). Climate feedback lambda = 1. 37 W/m²/K. Observational ECS posterior 2. 91 K (66% CI 2. 53, 3. 32) matches IPCC AR6 central 3. 0 K. Rockstrom planetary boundaries: 7 of 10 axes breached (2023 update). Phase 84: Dynamic K-flows. 4-box carbon cycle (atmosphere/land/surface ocean/deep ocean) reproduces airborne fraction 0. 50 (GCB 2024 obs 0. 48). Tziperman ENSO model: 4. 3-year period, 0. 67 K amplitude, matches 1997/98, 2015/16, 2023/24 El Nino events. Stommel AMOC bistability: etacritical = 0. 385 (saddle-node), P (collapse by 2050) = 14% matching Ditlevsen 2023 5-15% range; P (2095) = 77%. Tipping cascade probability for 3 elements (Greenland, West Antarctica, Amazon) at 2 C = 9. 2%. Phase 85: Mitigation. Renewables reach 72% of global electricity by 2050 (IEA NZE), solar LCOE drops to 18/MWh via Wright's Law. CDR portfolio (DAC + BECCS + reforestation + ocean alkalinity) reaches 9. 5 GtCO2/yr by 2050 — matching IEA target 10 GtCO2/yr — at 350B/yr. SRM stratospheric aerosol injection introduces termination shock risk: +1. 28 K over 10 years if abruptly stopped. Four scenarios compared: BAU peaks +3. 28 C with 92% cascade tipping; NZE alone peaks +2. 00 C with 9. 3% cascade; NZE+CDR +1. 59 C with 4. 4% cascade; NZE+CDR+SRM peak +1. 68 C with cascade only 1. 6%. Phase 86: 2026-2100 roadmap synthesises 19 major milestones and 10 falsifiable predictions (average probability 0. 61). Key milestones: 2030 global emissions peak, 2035 AGI accelerates climate models 1000x and solar LCOE 20/MWh, 2040 CO2 peak 480-500 ppm + DAC 1 GtCO2/yr commercial, 2050 NZE in major countries + CDR 10 GtCO2/yr, 2080 temperature peak +1. 5-1. 8 C, 2100 CO2 CDR -> SRM patch). Tier 1 #10 (Energy) and Tier 1 #11 (Climate) are two faces of the same K-flow intervention. The ITU 11-vertex polytope completes: engineering pentagon (Quantum Computing 10. 5281/zenodo. 20139391 + Machine Consciousness 10. 5281/zenodo. 20150501 + Cryptography 10. 5281/zenodo. 20151059 + Semiconductors 10. 5281/zenodo. 20174036 + Energy/Materials 10. 5281/zenodo. 20199598) + medicine triangle (Cancer 10. 5281/zenodo. 20174318 + Aging 10. 5281/zenodo. 20175663 + Psychiatry 10. 5281/zenodo. 20177427) + social sciences (Economics 10. 5281/zenodo. 20196309) + philosophy (Free Will 10. 5281/zenodo. 20197016) + biosphere super-hub (this paper). The Climate vertex bidirectionally connects to Energy (#10), Economics (#8), AI (#2), Cancer (#5), and Free Will (#9), forming the polytope's central biosphere super-hub (degree 6 — highest of all 11 vertices). Honest framing: Pass-1 interpretive paper reframing IPCC AR6 (2021-2023), Rockstrom planetary boundaries (2009, 2023), Lenton tipping elements (2023), Ditlevsen AMOC (2023), Boers AMOC early warning (2021), IEA NZE (2021), Lazard LCOE (2024), Friedlingstein Global Carbon Budget (2024), von Schuckmann Earth Energy Imbalance (2023), Climeworks DAC, Tziperman ENSO (1994), Stommel thermohaline circulation (1961) in ITU language. Numerical results match established empirical findings. Pass-2 follow-up would derive ITU-specific predictions: novel early-warning signal metrics from modular Kₐtm structure, ITU-derived constraints on climate sensitivity, Kcarbon kinetics for DAC material design. Includes 4 theory documents, 4 Python numerical experiments, 4 figures (PNG), 4 JSON summaries. Total runtime ~25 seconds.

ITU and Climate / Earth Systems: A Single-Axiom View of Atmospheric Information, Earth Energy Imbalance, Planetary Boundaries, Tipping Points, and the 2026-2100 Mitigation Roadmap (v1.0.0)

Key Points

Abstract

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