Bill Gates climate engineering theory

Bill Gates has funded the Stratospheric Controlled Perturbation Experiment (SCoPEx) at Harvard, which proposed releasing small amounts of calcium carbonate into the stratosphere to test solar radiation management. The experiment was repeatedly postponed and the SCoPEx team formally cancelled it in March 2024 after pushback from indigenous Sami groups in Sweden.

The 'blocking the sun' framing is broadly accurate to the intent of solar geoengineering, which aims to reflect a small fraction of sunlight to offset warming, but no operational deployment exists. Conspiracy adherents conflate SCoPEx with persistent contrails ('chemtrails'), which mainstream atmospheric science attributes to water-vapor condensation from jet exhaust.

The theory is a frequent topic on Tucker Carlson's program and in RFK Jr Children's Health Defense materials.

--- _Seeded into conspiracyg knowledge graph from curated figure-anchored list. Showing the connection, not the verdict._