This document proposes a revolutionary Planetary-Scale Molecular Shield System designed to address existential threats posed by extreme weather events on Earth. Anchored in cosmic balance principles and quantum physics, the system integrates three core components: a self-healing molecular shield, a full-resource adaptive extractor, and a global collaborative network of microsatellites. The molecular shield, formulated with 70% ocean water molecules and 30% continental mineral molecules (graphene, quartz, alloy steel, etc.), achieves thermal stability up to 1000℃ through quantum topology optimization and phase change material (PCM) integration. The full-resource adaptive extractor enables autonomous identification, extraction, and meta-fusion of Earth’s native resources, supported by vacuum zero-point energy supply and ternary decision-making logic to ensure energy self-sufficiency and resource sustainability. Complemented by a three-layer communication network (microsatellites, ground nodes, ocean platforms), the system realizes real-time calibration, cluster consensus scheduling, and fault self-repair. It also incorporates emergency response mechanisms for extreme scenarios (e.g., >1000℃ temperatures, global microsatellite failure) and an elegant exit plan aligned with planetary natural lifecycle laws. This system transcends traditional engineering paradigms, embodying a "planet protecting itself" philosophy, and provides a robust technical framework for safeguarding Earth’s civilization and ecology amid escalating climate crises.