S Styreen [ideas] · 3 years ago (Probably same solution as for pumping flooded mines). Build dykes and dams to close of a part of the sea or lake. Use pumps to empty. Create new land that is below sea level. Styreen [ideas] Posts: 1 Joined 3 years ago
J Jamie [ideas] · 3 years ago What is a 'Polder'? Anyway, this has already been suggested. Jamie [ideas] Posts: 323 Joined 4 years ago