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Rob Larter
polarrobs.bsky.social
did:plc:tfkhxwpdb2k5lqs336ixgurj
No, glacial maximum ppm was 180. During the last few interglacial periods ppm peaked at around 280. These are robust measurements on bubbles of the past atmosphere preserved in ice cores. We're in a completely different ballpark today.
2025-09-03T06:02:34.105Z