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Story summary
- Proposals to deploy reflective mirrors and increase low-Earth-orbit satellites raise concerns about human health and ecosystems.
- Four international scientific societies representing about 2,500 researchers urged the U.S. Federal Communications Commission (FCC) to conduct a full environmental review.
- They warn that altering the night-time light environment could disrupt biological clocks, affect sleep, migration, and plant cycles, and must be treated as seriously as climate change.
