The following submission statement was provided by /u/filosoful:

By the end of the century, Africa will be home to 40% of the world’s population – and nowhere is this breakneck-pace development happening faster than this 600-mile stretch between Abidjan and Lagos.

Please reply to OP's comment here: https://old.reddit.com/r/Futurology/comments/ygmcfa/megalopolis_how_coastal_west_africa_will_shape/iu97p0q/