Gabon's fight against rising seas: Port-Gentil at risk of disappearing

If sea levels continue to rise, scientists say cities around the world are at risk of disappearing underwater by 2050. One of them is Gabon's economic hub, Port-Gentil. A possible solution to the rising seas is to move the city away from the coast. But relocating Port-Gentil would mean moving over 100,000 people, an outcome that residents want to avoid at all costs. Our correspondents report.