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How CFCs can destroy stratospheric ozone

Contribution grade

Atmospheric chemistry · Scoped historical scientific contribution

Reference score160,000Provisional editorial estimate of this exact contribution; its grade is assessed separately.

What changed

Proposed that sunlight breaks down chlorofluoromethanes in the stratosphere, releasing chlorine that catalytically destroys ozone.

Scientific scope

The 1974 proposed stratospheric CFC sink and catalytic ozone-destruction mechanism.

Evidence

Original sources and institutional historical accounts support the stated contribution. The reading boundary is recorded at each source; this assessment is not an independent scientific verification.

Contributors

Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.

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