Forced Diffusion soil flux: A new technique for continuous monitoring of soil gas efflux

► The technique is functionally similar to regular dynamic chambers, and provides results comparable to leading commercially available devices. ► This soil efflux technique currently uses 10× less power than a comparable autochamber, with the potential for further gains. ► The passive technique is also inherently reliable because there are no moving parts. ► The technique is very stable in the field, including in dynamic boundary layer environments, and even is certain sub-snow environments. ► Opportunity for expanding carbon monitoring programs into remote areas.