Does 3000 ppm carbon dioxide have significant negative effects on cognition or health?
Mini
8
174
2040
90%
chance

Compared to average outdoor levels.

"Significant" is subjective here, but it needs to be a large enough effect that people would actually care to fix their air quality. (For example, asbestos has a "significant" health risk.)

Resolves once there's a well-established scientific consensus.

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