How did drought in the 1970s change settlement patterns in Mauritania?

The severe drought in the 1970s acted as a catalyst for a rapid and largely irreversible shift in Mauritania’s settlement patterns, fundamentally undermining the traditional nomadic life that had prevailed until that time.1

As the drought devastated the pastoral economy—leading to the loss of significant portions of livestock and the failure of crops—large numbers of people were forced to abandon their traditional way of life. This triggered a massive wave of urbanization as displaced populations migrated toward towns and cities in search of survival.123

The capital city, Nouakchott, which was a small village prior to independence, became a major center for refugees during this period, experiencing rapid growth that transformed it into the country's primary urban hub. This trend of population movement toward urban centers continued throughout the late 20th century, particularly concentrating along the Sénégal River and along the paved transportation arteries radiating from the capital. Consequently, the nomadic economy and lifestyle, once central to Mauritanian society, were nearly eliminated by these environmental and demographic pressures.13