
As a climate change expert at the World Bank, Arame Tall is deeply familiar with the facts and figures of global warming. She understands how rising seas and changing weather cycles are affecting her home country of Senegal — from a retreating coastline in the city of Dakar where she grew up, to her mother's hometown of Diourbel, where drought and floods have forced people to abandon their peanut farms.
But even with all that knowledge, Tall was still shocked when her own nephew attempted to flee the country for a better life in Europe. "To the whole family's astonishment, he disappeared one night, and we looked for him," she told me. "He couldn't be found."