Trees to be planted, are pictured at a warehouse next to a Tolou Keur garden, within an area that is part of the Great Green Wall, in Boki Diawe, Matam region, Senegal, July 13, 2021. Gardens known as 'Tolou Keur' hold plants and trees resistant to hot, dry climates, and are planted with circular beds that allow roots to grow inwards, trapping liquids and bacteria and improving water retention and composting. REUTERS/Zohra Bensemra SEARCH "BENSEMRA REFORESTATION" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES