The article discusses the importance of managing tidal wetlands as blue carbon ecosystems to reduce atmospheric greenhouse gas (GHG) concentrations and contribute to the United Nations Sustainable Development Goals. While blue carbon projects typically focus on mangroves, saltmarshes, and seagrass, the authors argue that other tidal wetlands, such as tidal freshwater wetlands, supratidal wetlands, transitional forests, and estuarine forests, also align with the characteristics of blue carbon ecosystems and have significant potential for carbon sequestration and emission reductions. These wetlands, influenced by tides, can store long-term organic carbon and have low GHG emissions due to factors like high primary productivity and slow soil decomposition. The article provides a classification of tidal wetlands based on key attributes and highlights their global distribution, carbon storage capabilities, and potential for significant GHG removals. It also addresses the threats these wetlands face, including human activities and climate change, and discusses the practicality and feasibility of managing and restoring them through carbon offset programs. The authors propose that protecting and restoring all tidal wetlands could reduce GHG emissions while providing multiple co-benefits, including biodiversity conservation.The article discusses the importance of managing tidal wetlands as blue carbon ecosystems to reduce atmospheric greenhouse gas (GHG) concentrations and contribute to the United Nations Sustainable Development Goals. While blue carbon projects typically focus on mangroves, saltmarshes, and seagrass, the authors argue that other tidal wetlands, such as tidal freshwater wetlands, supratidal wetlands, transitional forests, and estuarine forests, also align with the characteristics of blue carbon ecosystems and have significant potential for carbon sequestration and emission reductions. These wetlands, influenced by tides, can store long-term organic carbon and have low GHG emissions due to factors like high primary productivity and slow soil decomposition. The article provides a classification of tidal wetlands based on key attributes and highlights their global distribution, carbon storage capabilities, and potential for significant GHG removals. It also addresses the threats these wetlands face, including human activities and climate change, and discusses the practicality and feasibility of managing and restoring them through carbon offset programs. The authors propose that protecting and restoring all tidal wetlands could reduce GHG emissions while providing multiple co-benefits, including biodiversity conservation.