Rising seas are inundating US coastal wetlands, putting many on track to become open water
Along the three coasts of the contiguous United States, a silent race unfolds. Fueled by climate change, sea levels rise faster than at any time in recent geologic history. Meanwhile, coastal wetlands cling to a slim lead, lifted on newly accumulated sediments or moving inland as encroaching tides nip at their heels.
A groundbreaking national study has revealed that 84% of U.S. coastal wetlands are at risk of being inundated due to rising sea levels, with many projected to transform into open water. Coastal wetlands, crucial ecosystems that protect infrastructure and serve as habitats for wildlife, are losing ground in the face of climate change-induced sea level rise.
The Gulf Coast, in particular, is facing the most severe impacts, while some areas along the Atlantic Coast appear to be more resilient. However, there is hope for some wetlands, as 73% of the monitored sites still have the potential to migrate inland and escape submersion, provided certain conditions are met, such as suitable land slopes and no human barriers obstructing their path.
Wetlands provide invaluable services, including storm surge protection, habitat for endangered species, and economic benefits through activities like bird-watching and hunting. With the right land management strategies, such as removing dikes, adding sediment, and protecting inland areas, there is a chance to mitigate the worst effects of sea level rise and preserve these vital ecosystems for future generations.
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