Highest monthly CO2 level at Mauna Loa in first half of 2026

Prediction market on manifold. Resolves when June 2026 available at https://gml.noaa.gov/webdata/ccgg/trends/co2/co2_mm_mlo.txtResolves

24h Volume: $4,772.608. Liquidity: $1,000. Resolves: 6/30/2026.