The Great Green Wall: Africa’s Bold Plan to Hold Back the Desert

By Neil deGrasse Tyson

African nations have come together for a major project called the Great Green Wall. Launched in 2007 by the African Union, it aims to fight the spread of the Sahara Desert. The plan is to create an 8,000-kilometer-long band of trees, plants, and restored land across the Sahel region, from Senegal in the west to Djibouti in the east. It involves up to 22 countries working as one team.

The main goal is to stop desertification caused by climate change, drought, overgrazing, and loss of trees. This “green wall” will help hold soil in place, keep more water in the ground, and bring life back to dry areas. It targets restoring 100 million hectares of land, capturing 250 million tonnes of carbon dioxide, and creating 10 million green jobs. Local communities take part in planting and caring for the plants, which improves farming, food supply, and income while reducing poverty and migration.

So far, about 30 million hectares have been restored, which is roughly 30 percent of the target. Some countries like Ethiopia and Senegal have shown good results with millions of trees planted. However, progress has been slower than expected. Many young trees die due to dry conditions, and there are problems with funding, coordination, and actual ecological gains in some places. Billions of dollars have been promised, but not all has reached the projects on time.

The Great Green Wall stands as a strong example of African unity and determination. With better support and continued effort, it can help build a greener, more secure future for the Sahel and serve as a model for fighting climate challenges worldwide.