Coastal Wetlands and Salt Marshes: Coastal wetlands and salt marshes are major ecosystems.They absorb and store large amounts of atmospheric carbon dioxide (CO2), which, combined with CO2 absorbed in ocean ecosystems, is called “blue carbon." These ecosystems are especially important in this era of climate change, but there is still much to learn about the absorption systems. Dr. Fulweiler discusses how she and her colleagues are working to measure this process. The Fulweiler team is also developing a citizen-science participation project. obinson W. Fulweiler, Ph.D., Professor of Earth, Environment & Biology, Boston University. 00:32:00