Do low levels of human impact still reduce sequestered carbon?

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Low levels of human impact can still reduce sequestered carbon

Even minor degradation of coastal ecosystems like mangroves and seagrass can lead to significant emissions of sequestered carbon, according to a recent study. These findings highlight the sensitivity of these vital habitats to human activity and their crucial role in carbon storage.
Degradation of coastal ecosystems releases carbon

The study found that both partial and full degradation of mangroves and seagrass resulted in comparable reductions in sequestered carbon. This indicates that activities such as thinning, anchoring, clear-cutting, or excavating these environments, even at lower intensities, lead to notable carbon emissions.
Marine protected areas show positive climate impacts

Research published in the journal One Earth analysed 22,403 publications across 241 marine protected areas (MPAs). This comprehensive review demonstrated a significant increase in carbon sequestration within seagrass areas and mangroves located within MPAs.
Benefits observed with high protection levels

The study authors noted that the mitigation and adaptation benefits associated with protected areas were most evident in MPAs with high levels of protection and over extended periods. Conversely, areas with lower levels of protection showed no discernible benefits in terms of carbon sequestration or other ecological advantages.
MPAs offer valuable climate mitigation tools

While MPAs cannot entirely counteract the global impact of climate change, they are recognised as an important instrument for socio-ecological systems to adapt to and mitigate climate effects. These protected zones also contribute to enhanced biodiversity, species richness, marine organism reproductive capacity, and improved coastal protection.

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Do low levels of human impact still reduce sequestered carbon?

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