In this study we found that CO₂ fluxes from soil measured by the closed-chamber technique were overestimated during low atmospheric turbulence. This resulted in biased courses of CO₂ fluxes during a day. We removed CO₂ fluxes measured at low turbulence, which gave better flux estimates. We furthermore tested a novel technique that provided good measurement during low turbulence, thereby giving better estimates of CO₂ emissions from soils, which is a crucial part of the global carbon cycle.