This systematic review examines the transition of Technical and Vocational Education and Training (TVET) toward measurable low-carbon ecosystems. Following PRISMA 2020 guidelines, it synthesizes 113 empirical and conceptual studies from 2016–2026 through thematic synthesis to elucidate causal mechanisms linking green curriculum innovation to institutional decarbonization. Findings demonstrate that successful integration requires synergistic alignment of digital pedagogical tools, including virtual simulations within the "Twin Transition," and "living lab" infrastructures with industry competency standards. This relationship is conceptualized as "Eco-Pedagogical Symbiosis." Without structured upskilling and adequate resources, an "implementation maturity paradox" and "macro-micro policy decoupling" emerge: ambitious national mandates fail to translate into micro-level pedagogical readiness, resulting in symbolic greenwashing. Green curriculum effectiveness therefore depends on bridging macro-policy incentives and micro-level instructor literacy. The review recommends explicit structural scaffolds, including operational carbon footprint metrics embedded in TVET accreditation standards and mandatory green literacy certification for educators. These measures transform curriculum design from an administrative burden into a measurable catalyst for change. It provides policymakers and TVET leaders with a diagnostic blueprint for resilient, low-carbon educational ecosystems that advance genuine workforce transformation while mitigating structural policy decoupling
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