Peatlands Peatlands 10/28/26 “How do we classify wetlands that produce peat?” Peat is a buildup of dead leaves in high-moisture, low-oxygen conditions. Peatlands are wetlands that produce peat. Peatlands are the highest land-based carbon storage source on Earth. Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Like Loading... Earth/Climate scienceEcology