zeine el abidine works in the nearby diawling national park. he confirms the gravity of the situation. zeine: i spoke to an old man who told me that in the 1980's the ocean was two kilometers further back. now look at the damage that the sea has done. the government is trying to ensure that people are relocated to a safer area, but the older generation refuses and says, this is where our ancestors lived, we're not going anywhere. reporter: living from farming alone is increasingly difficult. land is in short supply due to the ground becoming oversalted. with their livelihoods destroyed, people are having to move inland. but the diawling national park, 12 kilometers away, provides alternative sources of income. a few years ago it was home to far fewer animals. today, it's a breeding ground for over 300 species of birds, including flamingoes. crocodiles live here, too. the warthog population is flourishing because the animals are not hunted here. there's both freshwater and saltwater in the senegal river delta. nature conservation makes sense here