2.3 - Coastal management in the UK and Bangladesh

Contrasting coastal settings

Holderness, on England's east coast south of Flamborough Head towards the Humber, contains weak glacial sediments exposed to North Sea waves. Cliff erosion supplies sediment to the wider coastal system. Towns, villages, farmland, tourism facilities and nationally important energy infrastructure create competing management priorities.

Southwest coastal Bangladesh is part of a low-lying delta exposed to tides and tropical-cyclone storm surges. Saline flooding can damage homes, contaminate freshwater and reduce agricultural productivity. Polders are low-lying areas enclosed by embankments, with structures to control water movement. Drainage is essential because rainfall and river water must also leave protected land.

These are the developed/emerging-country contrasts required by the specification. UNDP's 2025 report classifies the UK as very-high-HDI and Bangladesh as medium-HDI using 2023 data; Pearson calls these developed and emerging respectively. Category alone does not explain the strategies. Cliff retreat, tidal flooding, sediment dynamics, settlement and farming needs also differ.

Holderness: selective defence

East Riding Council's coastal account, checked in October 2026, identifies defended towns including Bridlington, Hornsea and Withernsea, alongside important infrastructure at Mappleton and the gas-terminal frontage. Hard structures protect selected places, while much of the coast continues to erode. Regular inspection and maintenance support continued performance.

Keeping a developed frontage in place can protect homes, transport and tourism. Retaining beach sediment can reduce wave attack locally. However, interruption of sediment supply may narrow downdrift beaches, and continued retreat next to a protected frontage changes its exposure. Protection should therefore be evaluated across connected frontages and through time.

The Flamborough Head to Gibraltar Point shoreline management plan guides strategic choices. Its spatial units reflect different assets and coastal processes. The council explains that defending its entire coastline would bring large costs and environmental impacts; selective defence can concentrate resources where benefits justify them, but leaves difficult questions for owners of undefended property and farmland.

Read the Holderness policy map alongside settlements, geology and habitats. Identify whether a colour represents present defence or a future policy, then inspect the neighbouring unit. A boundary on a policy map does not stop waves or sediment crossing it.

Bangladesh: embankments, drainage and vegetation

Bangladesh's Coastal Embankment Improvement Project, Phase I, approved in 2013, combines upgraded embankments with water-control structures, drainage channels and afforestation. The purpose is to reduce tidal and storm-surge inundation and saline intrusion while supporting agriculture. Embankments reduce entry of high seawater; working drainage is needed to avoid trapping water inside.