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Prediction markets for Mauna Loa Observatory

Will atmospheric CO₂ concentrations reach 450 ppm (YES) or 400 ppm (NO) first?

Oct 8, 9:43 PMJan 1, 4:59 AM

95.43%chance

15723

OptionVotes

NO

YES

1528

910

What will be the mean annual CO2 level in 2025?

Jul 30, 2:42 PMJun 30, 9:59 PM

59.78%chance

4124

OptionProbability

NO

YES

352

195

What will be the annual mean CO2 level in 2030?

Jul 30, 4:46 PMJun 30, 9:59 PM

44.45%chance

380

OptionProbability

NO

YES

309

211

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