Treat et al. provide an overview of the state of understanding of permafrost, focusing on its critical role in controlling global carbon cycling and within a changing climate. Among other highlights, many studies, models, and observations show that permafrost is likely a wetland methane source and a small terrestrial sink for carbon dioxide.
The article can be read at the journal website.
Treat, C.C., Virkkala, A.-M., Burke, E., Bruhwiler, L., Chatterjee, A., Fisher, J.B., Hashemi, J., Parmentier, F.-J.W. Rogers, B.M., Westermann, S., Watts, J.D., Blanc-Betes, E., Fuchs, M., Kruse, S., Malhotra, A., Miner, K., Strauss, J., Armstrong, A., Epstein, H.E., Gay, B., Goeckede, M., Kalhori, A., Kou, D., Miller, C.E., Natali, S.M., Oh, Y., Shakil, S., Sonnentag, O., Varner, R.K., Zolkos, S., Schuur, E.A.G., Hugeliuset, G., 2024. Permafrost carbon: Progress on understanding stocks and fluxes across northern terrestrial ecosystems. Journal of Geophysical Research: Biogeosciences,129, e2023JG007638. https://doi.org/10.1029/2023JG007638