Agence France-Presse: The desert is making a comeback in the Middle East, with fertile lands turning into barren wastes that could further destabilise the region, experts said at a water conference on Thursday. “Desertification spreads like cancer, it can’t be noticed immediately,” said Wadid Erian, a soil expert with the Arab League, at a conference on Thursday in the Egyptian coastal town of Alexandria. Its effect can be seen in Syria, where drought has displaced hundreds of thousands of people, …