Will Monthly Average Atmospheric Carbon Dioxide be greater than 427 ppm in September 2026?
MonthlyScience26dForecastExLimited verified dataCurrent implied probabilityNo 88%
Market quality
30 / 100
Low quality24h Volume
—
Liquidity
$120
Low liquidityMarket data
Updated 5 minutes ago
Trends
Related Markets
Related questions for context, not a comparison of equivalent contracts.
Will Monthly Average Atmospheric Carbon Dioxide be greater than 425 ppm in September 2026?
ForecastExWill Monthly Average Atmospheric Carbon Dioxide be greater than 426 ppm in September 2026?
ForecastExWill Monthly Average Atmospheric Carbon Dioxide be greater than 427 ppm in December 2026?
ForecastExHow high will the monthly average H100 Index get before January 1, 2029?
Manifold MarketsWill Rocket Lab successfully send an atmospheric probe to Venus by the end of 2026?
Manifold MarketsAtmospheric nitrous oxide concentrations to grow in 2025?
FutuurRules
Monthly Atmospheric Carbon Dioxide September 2026.
- Will Monthly Average Atmospheric Carbon Dioxide be greater than 427 ppm in September 2026? Price reflects the latest available ForecastEx exchange evidence.
Open markets
Science
KALSHIWhen will the next Millennium Prize be awarded?
- Before 2035+19.0pt94%
- Before 2030+6.0pt82%
- Before 2029+15.3pt47%
+2 more outcomes
- Total Vol
- $256.6K
- 24h Vol
- $140.5K
POLYMARKETWill the US confirm that aliens exist by which date?
- December 31+0.1pt4%
- September 30+0.1pt1%
- April 300%
+3 more outcomes
KALSHIWill the U.S. confirm that aliens exist?
- Before Jan 20, 2029-1.0pt20%
- Before 2028-1.0pt12%
- Before 2027+0.1pt5%
+5 more outcomes
- Total Vol
- $33.3M
KALSHIWhen will the Riemann hypothesis be solved?
- Before 2030+71.0pt92%
- Before 2032+44.0pt92%
- Before 2028+44.0pt59%
+1 more outcomes
- Total Vol
KALSHIWill WHO declare Hantavirus a Public Health Emergency of International Concern this Year?
- No96%
- Yes+1.9pt4%
- Total Vol
- $1.9M
- 24h Vol
- $6K
KALSHIWhen will Intellia Therapeutics submit a BLA for Lonvo-z?
- before October+64.0pt98%
- before 2027+22.0pt98%
- before December+30.0pt98%
+3 more outcomes
- How many 5.5 or above earthquakes worldwide September 7 - September 13?
- Will 2026 be the hottest year ever?
- Will there be an 8 magnitude earthquake in California before 2027?
- Min Arctic sea ice extent this summer?
- Major volcano eruption in 2026?
- How many major Atlantic hurricanes will there be in 2026?
- When will Compass Pathways submit a NDA for COMP360 psilocybin?
- Where will 2026 rank among the hottest years on record?
- How many 6.5 or above earthquakes worldwide September 7 - September 13?
- Which countries will report an Ebola case in 2026?
Frequently asked questions
- What are the current odds for Will Monthly Average Atmospheric Carbon Dioxide be greater than 427 ppm in September 2026??
- ForecastEx prices No at 88% as of September 9, 2026.
- When does Will Monthly Average Atmospheric Carbon Dioxide be greater than 427 ppm in September 2026? resolve?
- Will Monthly Average Atmospheric Carbon Dioxide be greater than 427 ppm in September 2026? is scheduled to resolve on October 5, 2026.
- How is Will Monthly Average Atmospheric Carbon Dioxide be greater than 427 ppm in September 2026? settled?
- ForecastEx settles this market as follows: Monthly Atmospheric Carbon Dioxide September 2026.