Global Warming Images
Sea levels are rising across the world driven by melt water from glaciers and ice sheets. Sea levels will continue to rise putting ever increasing pressure on sea walls and levees that protect vulnerable low lying land around the coast. The cost of protecting these low lying areas is becoming more expensive and more difficult as time goes by. One answer to this problem is managed retreat or coastal realignment. This is where existing coastal protection is deliberately breached to allow sea water to flood onto agricultural land. This takes pressure off during storm surges and helps protect nearby urban areas. As well as protecting towns around the coast managed retreat has the added bonus that it creates valuable wildlife habitat in the form of coastal wetlands.