Al Jazeera’s special coverage of the delayed 2020 summer Olympic Games in Japan.
Moussa Kamara shows a sketch of a Tolou Keur garden, which holds plants and trees resistant to hot, dry climates. They are planted with circular beds that allow roots to grow inwards, trapping liquids and bacteria and improving water retention and composting. [Zohra Bensemra/Reuters]
Khadidiatou Diouf, 32, a Tolou Keur programme trainer at the eco-villages department of the Senegalese Agency for Reforestation and the Great Green Wall, shows how to install a watering system at a newly built garden in Boki Diawe. [Zohra Bensemra/Reuters]
A chicken cage at a Tolou Keur garden in Boki Diawe. [Zohra Bensemra/Reuters]
Ibrahima Samba Diop, 75, who is one of the beneficiaries of the Tolou Keur garden scheme, checks plants within the Great Green Wall target area in Kanel, Matam region. [Zohra Bensemra/Reuters]
Kamara helps to install a water reserve at a Tolou Keur garden. [Zohra Bensemra/Reuters]
A Fulani nomadic tribe member sits on a cart as she travels in the Barkedji-Dodji Forest, an area which is part of the Great Green Wall of the Sahara and the Sahel. [Zohra Bensemra/Reuters]
The Green Wall initiative was launched in 2007 to slow desertification across Africa's Sahel region. [Zohra Bensemra/Reuters]