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climate change

10 markets across Kalshi and Polymarket, $277 traded today.

MarketChance24hBest priceVolume 24h
Min Arctic sea ice extent this summer?4.4-4.6m sq kmWeatherEnds Sep 30, 202697%—Polymarket97.9¢$120
Will the Climate Clock's 1.5°C deadline change by...?WeatherEnds Dec 31, 202610%—Polymarket10¢$104
Will the 2026–27 El Niño be the strongest on record?WeatherEnds Mar 31, 202772%—Polymarket72¢$40
Will Hawaii reach Coral Bleaching Alert Level 1 by December 31, 2026?WeatherEnds Dec 31, 202649%—Polymarket52¢$8
India meets its 2030 climate goals?WeatherEnds Dec 31, 203163%—Kalshi63¢$2
EU meets its 2030 climate goals?WeatherEnds Dec 31, 203241%—Kalshi41¢$2
September 2026 Temperature Increase (ºC)1.40–1.44ºCWeatherEnds Oct 9, 202642%—Polymarket77¢$2
How bad will CO2 atmospheric concentration get before 2030?At least 440WorldEnds Dec 31, 202987%—Kalshi88¢—
Will the Supreme Court bar Boulder’s state-law climate claims against Suncor and Exxon?PoliticsEnds Aug 1, 202869%—Kalshi72¢—
Will the world pass 2 degrees Celsius over pre-industrial levels before 2050?WeatherEnds Dec 31, 204975%—Kalshi76¢—