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Climate Change

Monthly Atmospheric Carbon Dioxide December 2027

Monthly Atmospheric Carbon Dioxide December 2027 · December 2027 · Trading open

No trades yet. The chart appears after the first trade.

About this market

No trades have been recorded on this market yet, so there is no market price for any outcome.

Trading closes on Jan 5, 2028. The result is confirmed by National Oceanic and Atmospheric Administration (NOAA).

Global average atmospheric carbon dioxide for a given month.

Rules and timeline

Each outcome is its own contract. A Yes contract pays $1 if its outcome happens and $0 if not; a No contract pays the reverse. Because the contracts trade separately, their chances don't have to add up to 100%.

  • Above 427Resolves Yes if Monthly Average Atmospheric Carbon Dioxide is greater than 427 ppm in December 2027? (CO2) (greenhouse gases) (climate change).
  • Above 428Resolves Yes if Monthly Average Atmospheric Carbon Dioxide is greater than 428 ppm in December 2027? (CO2) (greenhouse gases) (climate change).
  • Above 429Resolves Yes if Monthly Average Atmospheric Carbon Dioxide is greater than 429 ppm in December 2027? (CO2) (greenhouse gases) (climate change).
  • Above 430Resolves Yes if Monthly Average Atmospheric Carbon Dioxide is greater than 430 ppm in December 2027? (CO2) (greenhouse gases) (climate change).
  • Above 431Resolves Yes if Monthly Average Atmospheric Carbon Dioxide is greater than 431 ppm in December 2027? (CO2) (greenhouse gases) (climate change).

Result confirmed by National Oceanic and Atmospheric Administration (NOAA).

Trading opened
Oct 15, 2026
Trading closes
Jan 5, 2028
Expected result
Jan 5, 2028
Expected payout
Jan 5, 2028

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Other dates in this series

Prices are the last trades on the ForecastEx exchange and can be delayed by about ten minutes. A chance is the price of a Yes contract, not a forecast by Aries. Event contracts involve risk, including the loss of the full amount paid. Information on this page is for informational purposes only and is not investment advice.