Translate the following English sentence to French:
"The matter is even harder to appreciate, when we think of how much we are affected by the problems of desertification in North Africa and the problems that are associated with the Mediterranean area."
La chose devient encore moins compréhensible quand on pense combien nous sommes directement concernés par exemple par la désertification de l' Afrique du Nord ou les problèmes de la Méditerranée.