Rising Coastal Hardening Threatens Global Beaches, Study Reveals
A recent study indicates that approximately one-third of the world’s sandy coastlines have been “hardened” by human-made structures, raising alarms for environmental sustainability and coastal communities. Coastal hardening refers to the construction of rigid, impermeable barriers like seawalls and roads to protect shorelines from erosion and flooding. While these measures offer immediate protection against rising sea levels and severe storms, they significantly disrupt natural beach dynamics. The Bay of Bengal is the most affected region, with a staggering 84% of its coastline now fortified. Other areas, including parts of Western Europe, the Mediterranean, and North America, also report high levels of coastal hardening, with some regions surpassing 60%. According to climate scientist Roxy Koll, this alteration may result in greater coastal erosion and sea encroachment, particularly affecting low and lower-middle-income nations where mapping and resources are insufficient. The study underlines the urgent need for innovative solutions such as restoring natural habitats and improving urban planning to mitigate beach loss.
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