Water, the saying goes, will find its way. And so it seems to be the case in West Africa. Rising sea levels and erosion along the coast are threatening the homes and jobs of hundreds of thousands of people across West Africa. Grand-Lahou is one example. The Ivory Coast tourist town is about 100 kilometers west of Abidjan. The waves are swallowing the coastline of Grand-Lahou’s old town at a rate of one to two meters a year. It is a problem along much of West Africa’s coast. The effects could be serious. One-third of the area’s people live by the sea. The coastal areas contribute about half of the area’s GDP, or gross domestic product. Eugene Koffi has spent all his life on a shrinking patch of land between the sea and lagoon. It is called Lahou-Kpanda. Pointing out across the water, Koffi says the sea used to be back there, two kilometers away.