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Parker EarthShield is a proposed space-based solar shield at the Earth–Sun L1 point designed to gently trim incoming sunlight by ~1.7% and help stabilize the climate while society decarbonizes. The concept uses a ~xx-km reflective sunshade assembled from modular panels, engineered for adjustability and reversibility so solar radiation can be fine-tuned—not forced—and paused if needed. Unlike stratospheric aerosols, this planetary sunshade keeps materials out of Earth’s atmosphere and focuses on controllability, governance, and transparency. On this site you can explore how the L1 orbit works, expected climate impact ranges, materials and manufacturing paths, mission timelines, and independent review needs. Start with our overview of L1 sunshade feasibility, then see how modular assembly, station-keeping, and safety constraints shape the design. We welcome peer review from climate scientists, space engineers, and policymakers.
Start with our overview of L1 sunshade feasibility…