emissions can be reduced no matter how the remaining electricity is allocated. Since the geographical conditions of the countries around the center of the Sahara Desert are similar to Agadez, LCCO2 emissions can be reduced if the allocation ratio of electricity supply, desalination, and ammonia synthesis is adjusted as described above. In other words, even if desalinated water and ammonia as fertilizer are delivered to the vast land area of the Sahara Desert, the WEA scheme can reduce LCCO2 emissions. In particular, the largest city in the Sahara Desert is Nouakchott in Mauritania, which faces the sea and is surrounded by desert. The scarcity of water is expected to increase because of the significant growth in population. Therefore, it is worthwhile to consider the WEA scheme.