easy · Enhanced ACT reading
Carbon sequestration is the process of capturing and storing atmospheric carbon dioxide. Natural 'blue carbon' ecosystems, such as salt marshes and seagrasses, can store significantly more carbon per unit area than terrestrial forests.
The author mentions 'salt marshes and seagrasses' primarily to:
- Argue that terrestrial forests are no longer a viable option for large-scale carbon sequestration efforts in the future.
- Highlight specific marine environments that are particularly efficient at removing carbon from the atmosphere.
- Suggest that salt marshes are the only ecosystems capable of storing carbon for periods longer than one hundred years.
- Detail the physical process by which salt marshes convert gaseous carbon dioxide into organic matter in the soil.
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