Agence France-Presse: The Nile Delta, Egypt’s bread basket since antiquity, is being turned into a salty wasteland by rising seawaters, forcing some farmers off their lands and others to import sand in a desperate bid to turn back the tide. Experts warn that global warming will have a major impact in the delta on agriculture resources, tourism and human migration besides shaking the region’s fragile ecosystems. Over the last century, the Mediterranean Sea, which fronts the coast of the Nile Delta, …