Some facts about the project to build a road across the Sahara desert, linking Morocco and Nigeria

Work has started on a new road across the Sahara. It will cross the desert between Morocco and Nigeria. Building this road is an enormous challenge. The desert sands are always moving and roads are often covered, so nylon curtains have been put up to protect the new highway. The curtains need frequent repairs as the wind and sand break through them. Trees that can survive in the desert have been planted along the new road to grow into a more permanent defence, but many have already died.