CH4 and CO2 flux measurements carried out at the NGEE-Arctic/AmeriFlux US-NGC Council, Alaska site, which is a lichen-rich subarctic tussock tundra on underlying continuous permafrost. Photo cr. Sigrid Dengel

CH4 and CO2 flux measurements carried out at the NGEE-Arctic/AmeriFlux US-NGC Council, Alaska site, which is a lichen-rich subarctic tussock tundra on underlying continuous permafrost. Photo cr. Sigrid Dengel