What is Coastal Erosion?
Coastal erosion is the process by which coastlines are gradually worn away by the action of waves, currents, tides, and human activity. It can lead to loss of land, damage to property, and environmental changes along the shore.
How Coastal Erosion Works
Wave action constantly shapes the shoreline. Over time, cliffs, beaches, and dunes are eroded, transporting sand and sediment along the coast. Factors influencing erosion include wave energy, rock type, sea level changes, and human interventions like sea walls or groynes.
The Case of Dunwich
Dunwich, a historic town on the Suffolk coast in England, is a dramatic example of coastal erosion. Once a thriving medieval port, most of the town has been lost to the sea over centuries. Coastal defenses were minimal, and the town gradually sank into the North Sea, leaving only a small village today.
Impact on Communities
Coastal erosion can threaten homes, infrastructure, and ecosystems. Communities must plan for erosion through monitoring, management strategies, and sustainable development to minimize loss and preserve natural habitats.
Learn More
For a visual explanation of coastal erosion and its impact, watch this video:
Coastal erosion is an ongoing natural process that requires awareness, planning, and adaptation to protect both people and the environment.