Wetlands are the Earth’s greatest natural carbon stores, however, since 1900, we have lost 64% of our wetlands due to both human activity and climate change. Coastal wetlands and deltas–wetlands that form as rivers–are particularly vulnerable due to their position at the land-sea interface and many are, in fact, sinking. In this episode, we speak to Dr. Marc Simard about the crucial role of wetlands in climate regulation and adaptation. We also dig into his Delta-X project to look at how he and his team are combining remote sensing and in situ measurements to understand how the Mississippi River Delta is growing and sinking, and how we can apply this research to protecting deltas around the world.