Polymarket$3.30BOIOpen interest: sum of pool liquidity across all active markets, reported by the Polymarket API.
Kalshi$381.46MOIOpen interest: total contracts outstanding across all active markets, reported by the Kalshi API.
Limitless$27.64MOIOpen interest: estimated from total volume traded (USDC). Limitless does not report a separate OI metric.
Updated Today
If the annual global mean surface temperature anomaly has reached or exceeded +2.0°C above pre-industrial levels (1850-1900 average) in any calendar year before Jan 1, 2050, then the market resolves to Yes.
As of March 18, 2026, the Kalshi odds for Will the world pass 2 degrees Celsius over pre-industrial levels before 2050? are: Before 2050: 82%. These probabilities are derived from real-money trading and update in real time.
Will the world pass 2 degrees Celsius over pre-industrial levels before 2050? is currently available on Kalshi. Check PredictMarketCap for cross-platform availability as new markets are added regularly.
Prediction market odds reflect the aggregate opinion of traders who risk real money on outcomes. The price of a share (e.g., 65¢) represents the market's implied probability (65%). Prices move as traders buy and sell based on new information, polls, and analysis.
