Announcing the Third Quarter 2027 <i>Limnology and Oceanography</i> Special Collection: Greenhouse Gas Dynamics in Aquatic Ecosystems: Mechanisms, Impacts, and Future Directions

In the current context of global environmental change, understanding the dynamics of direct and indirect greenhouse gas (GHG; including CH4, CO2, NOx, O3, H2O vapor; HFCs, SF6) fluxes in aquatic ecosystems is critical. Along the land-ocean aquatic continuum, freshwater and coastal ecosystems, including wetlands, play a significant role in the global carbon cycle and climate regulation. However, many mechanisms driving GHG production, consumption, and total fluxes (particularly of the lesser-studied GHGs) in these ecosystems remain poorly understood. This Special Collection invites contributions that explore single and multiple aspects of direct and indirect GHG fluxes in aquatic ecosystems along the land-ocean aquatic continuum. We welcome experimental studies conducted in laboratory and field settings that examine GHG fluxes and underlying physical, chemical, and biological processes in aquatic and wetland ecosystems, and welcome contributions that assess the effects of environmental drivers (warming, eutrophication, etc.) on direct and indirect GHG fluxes (Fig. 1). We also encourage submissions that integrate experimental data with modeling approaches to extrapolate findings across different spatial and temporal scales. In this Special Collection of Limnology and Oceanography, we welcome the submission of studies with broad implications for all fields of oceanography and limnology, from biogeochemistry to microbial ecology and modeling. By synthesizing current knowledge and highlighting innovative research, we aim to advance our understanding of the role aquatic and wetland ecosystems play in climate regulation and of the resilience of these environments in a changing world. Along with all accepted submissions to this Special Collection, all relevant previously published papers on GHGs will be included, providing researchers with a wealth of historic to current scientific research (see the journal website collections page for examples; https://aslopubs.onlinelibrary.wiley.com/topic/vi-categories-19395590/ac5e9f18-3c05-455f-be97-0c888618e6bc/19395590). All contributions to this Special Collection must fit within the scope of L&O and will be assessed with the same level of rigor as regular journal contributions. As L&O is transitioning to continuous publication in 2026, accepted papers will be published immediately with a permanent and citable DOI. The Special Collection will be targeted for completion during the third quarter of 2027. For more information, manuscript proposal, or inquiries on the suitability of your work, please contact one of the Deputy Editors: Steeve Comeau, [email protected], Elisa Schaum, [email protected] and Julia Mullarney, [email protected]. Special Collection Editors