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Eelgrass meadows along the Swedish Skagerrak coast are like time capsules holding valuable information about climate control. Over the past century, they've stored an average of 14 grams of carbon per square meter annually, which is roughly equivalent to removing 52.4 grams of carbon dioxide from the air each year. While their carbon storage capacity is somewhat lower compared to other seagrasses globally, an interesting finding is that half of the stored carbon comes from sources other than seagrasses. This highlights the importance of non-seagrass materials in carbon storage. Despite consistent carbon levels at a standard depth, the total carbon varies widely, possibly due to prolonged accumulation. With the risk of seagrass loss and sediment erosion, this stored carbon faces a potential release, affecting our efforts to combat climate change.
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This page is a summary of: First assessment of seagrass carbon accumulation rates in Sweden: A field study from a fjord system at the Skagerrak coast, PLOS Climate, January 2023, PLOS,
DOI: 10.1371/journal.pclm.0000099.
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