Ibrahima Samba Diop, 75, who is one of the beneficiary's of a Tolou Keur garden, checks plants, within the Great Green Wall target area in Kanel, 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

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

Baydi Wague, 11, waters a newly planted tree at a Tolou Keur garden in Boki Diawe, within the Great Green Wall area, Matam region, Senegal, July 12, 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 TPX IMAGES OF THE DAY

Moussa Kamara, 47, a baker and a Tolou Keur garden caretaker, shows a sketch of a Tolou Keur garden, which holds 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, as he speaks to journalists whilst sitting with his family members in a courtyard at his house in Boki Diawe, within the Great Green Wall area, in Matam region, Senegal, July 12, 2021. Kamara is part of a project that aims to create hundreds of such gardens - known as 'Tolou Keur' in Senegal's Wolof language - that organisers hope will boost food security, reduce regional desertification and engage thousands of community workers. "This project is incredibly important," said Kamara. "When you grow one tree, over 20 years people and animals will benefit from it."REUTERS/Zohra Bensemra SEARCH "BENSEMRA REFORESTATION" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Moussa Kamara, 47, a baker and a Tolou Keur garden caretaker, prepares to plant a tree at a newly built Tolou Keur garden, which holds 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, in Boki Diawe, within the Great Green Wall area in Matam region, Senegal, July 12, 2021. Kamara is part of a project that aims to create hundreds of such gardens - known as 'Tolou Keur' in Senegal's Wolof language - that organisers hope will boost food security, reduce regional desertification and engage thousands of community workers. "This project is incredibly important," said Kamara. "When you grow one tree, over 20 years people and animals will benefit from it." REUTERS/Zohra Bensemra SEARCH "BENSEMRA REFORESTATION" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Trees stand around a Tolou Keur garden in Walalde department of Podor, in the Great Green Wall of the Sahara and the Sahel area, Senegal, July 11, 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. Picture taken with a drone. REUTERS/Zohra Bensemra SEARCH "BENSEMRA REFORESTATION" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Aboulaziz Kome, 44, a carpenter, checks a chicken at a Tolou Keur garden in Walalde department of Podor, in an area that is part of the Great Green Wall of the Sahara and the Sahel area, in Senegal, July 11, 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

Thierno Com waters a tree that is struggling to grow at a Tolou Keur garden in Walalde department of Podor, in an area that is part of the Great Green Wall of the Sahara and the Sahel area, in Senegal, July 11, 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

A girl carries a jerrycan filled with water at a Tolou Keur garden in the Walalde department of Podor, in the Great Green Wall of the Sahara and the Sahel area, Senegal, July 11, 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

Mariama Ly, 51, attends a morning briefing at a newly built Tolou Keur garden in Boki Diawe, within the Great Green Wall area, in Matam region, Senegal, July 10, 2021. Garden's 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

Senegalese agricultural engineer Aly Ndiaye, who is the head of the training and green sectors division at the eco-villages department of the Senegalese Agency for Reforestation and the Great Green Wall, waters trees at a newly built Tolou Keur garden, in Boki Diawe, within the Great Green Wall area, Matam region, Senegal, July 10, 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. Ndiaye stressed the importance of "smaller actions that are permanent". "A thousand Tolou Keur is already 1.5 million trees," said Ndiaye. "So if we start, we can make a lot." REUTERS/Zohra Bensemra SEARCH "BENSEMRA REFORESTATION" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Children carry wood that was collected for cooking, as they walk past a newly built a Tolou Keur garden in Boki Diawe, within the Great Green Wall area, in Matam region, Senegal, July 10, 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

Amadou Bathili, 50, a trainer who teaches how to build Tolou Keur gardens through the Tolou Keur programme, prepares a chicken cage at a newly built Tolou Keur garden in Boki Diawe department of Podor region, in an area which is part of the Great Green Wall of the Sahara and the Sahel area, in Senegal, July 10, 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

Moussa Kamara, 47, a baker and a Tolou Keur garden caretaker, helps to install a water reserve at a newly built Tolou Keur garden, which holds 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, in Boki Diawe, within the Great Green Wall area, in Matam region, Senegal, July 10, 2021. Kamara is part of a project that aims to create hundreds of such gardens - known as 'Tolou Keur' in Senegal's Wolof language - that organisers hope will boost food security, reduce regional desertification and engage thousands of community workers. "This project is incredibly important," said Kamara. "When you grow one tree, over 20 years people and animals will benefit from it." REUTERS/Zohra Bensemra SEARCH "BENSEMRA REFORESTATION" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

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 newly built a Tolou Keur garden, in Boki Diawe, Matam region, Senegal, July 10, 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

An aerial view shows participants of a Tolou Keur programme working on a newly built Tolou Keur garden in Boki Diawe, within the Great Green Wall area, in Matam region, Senegal, July 10, 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. Picture taken with a drone. REUTERS/Zohra Bensemra SEARCH "BENSEMRA REFORESTATION" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES TPX IMAGES OF THE DAY

A gas collection well head is shown at the Frank R. Bowerman landfill composting area in Irvine, California where the methane collected is used to power 26,000 homes in neighboring Anaheim, California, U.S., June 15, 2021.Picture taken June 15, 2021. REUTERS/Mike Blake

Iraqi single mother Marwa Raed Taha, sits with her friend as she prepares balls made of compost and soil, in Baghdad, Iraq, May 10, 2021. Picture taken May 10,2021. REUTERS/Saba Kareem

A Mexican woman and a Central American migrant work in a compost to create organic material to be used as fertilizer for plants, as part of Mexican President Andres Manuel Lopez Obrador administration's signature "Sembrando Vida," or "Sowing Life" program, at the Tapachula Forestry Garden Center, in Tapachula, Mexico April 21, 2021. Picture taken April 21, 2021. REUTERS/Jose Torres

Central American migrants work in a compost to create organic material to be used as fertilizer for plants, as part of Mexican President Andres Manuel Lopez Obrador administration's signature "Sembrando Vida," or "Sowing Life" program, at the Tapachula Forestry Garden Center, in Tapachula, Mexico April 21, 2021. Picture taken April 21, 2021. REUTERS/Jose Torres

Central American migrants work in a compost to create organic material to be used as fertilizer for plants, as part of Mexican President Andres Manuel Lopez Obrador administration's signature "Sembrando Vida," or "Sowing Life" program, at the Tapachula Forestry Garden Center, in Tapachula, Mexico April 21, 2021. Picture taken April 21, 2021. REUTERS/Jose Torres

Central American migrants work in a compost to create organic material to be used as fertilizer for plants, as part of Mexican President Andres Manuel Lopez Obrador administration's signature "Sembrando Vida," or "Sowing Life" program, at the Tapachula Forestry Garden Center, in Tapachula, Mexico April 21, 2021. Picture taken April 21, 2021. REUTERS/Jose Torres

A Mexican woman and Central American migrants work in a compost to create organic material to be used as fertilizer for plants, as part of Mexican President Andres Manuel Lopez Obrador administration's signature "Sembrando Vida," or "Sowing Life" program, at the Tapachula Forestry Garden Center, in Tapachula, Mexico April 21, 2021. Picture taken April 21, 2021. REUTERS/Jose Torres

Central American migrants work in a compost to create organic material to be used as fertilizer for plants, as part of Mexican President Andres Manuel Lopez Obrador administration's signature "Sembrando Vida," or "Sowing Life" program, at the Tapachula Forestry Garden Center, in Tapachula, Mexico April 21, 2021. Picture taken April 21, 2021. REUTERS/Jose Torres

Central American migrants work in a compost to create organic material to be used as fertilizer for plants, as part of Mexican President Andres Manuel Lopez Obrador administration's signature "Sembrando Vida," or "Sowing Life" program, at the Tapachula Forestry Garden Center, in Tapachula, Mexico April 21, 2021. Picture taken April 21, 2021. REUTERS/Jose Torres

Local resident Azra Ramic throws household waste into a compost bin in Gornja Tuzla, Bosnia and Herzegovina April 21, 2021. Picture taken April 21, 2021. REUTERS/Dado Ruvic

Dzemila Agic, an environmental activist, speaks during an interview with Reuters in Tuzla, Bosnia and Herzegovina April 21, 2021. Picture taken April 21, 2021. REUTERS/Dado Ruvic

Aerial view of the Gornja Tuzla town, Bosnia and Herzegovina April 21, 2021. Picture taken with drone on April 21, 2021. REUTERS/Dado Ruvic

Local resident Azra Ramic throws household waste into a compost bin in Gornja Tuzla, Bosnia and Herzegovina April 21, 2021. Picture taken April 21, 2021. REUTERS/Dado Ruvic

Aerial view of the thermal power plant in Tuzla, Bosnia and Herzegovina April 21, 2021. Picture taken with drone on April 21, 2021. REUTERS/Dado Ruvic

Compost from The Vineyard Farm sits in front of "bubbles" where community members gather for a training sessions as part of an outreach program to the Black community to increase vaccine trial participation in Rochester, New York, U.S., November 14, 2020. Picture taken November 14, 2020. REUTERS/Lindsay DeDario

Homemade sandbags looking like compost bags are seen in front of the door of a house next to a flooded street in Great Barford, near Bedford, Britain, December 26, 2020. REUTERS/Andrew Boyers

Fruits are seen on a compost heap before being used as food for black soldier flies in the InsectiPro farm in Red Hill, Kiambu County, Kenya, September 11, 2020. Picture taken September 11, 2020. REUTERS/Baz Ratner

A field of hemp for French company Geochanvre making compostable face mask is seen at Argenteuil-sur-Armancon, France, September 10, 2020. Picture taken September 10, 2020. REUTERS/Charles Platiaiu

Frederic Roure, founding President of French company Geochanvre poses in a field of hemp at Argenteuil-sur-Armancon, France, September 10, 2020. Picture taken September 10, 2020. REUTERS/Charles Platiaiu

Frederic Roure, founding President of French company Geochanvre poses in a field of hemp at Argenteuil-sur-Armancon, France, September 10, 2020. Picture taken September 10, 2020. REUTERS/Charles Platiaiu

Frederic Roure, founding President of French company Geochanvre poses in a field of hemp at Argenteuil-sur-Armancon, France, September 10, 2020. Picture taken September 10, 2020. REUTERS/Charles Platiaiu

Frederic Roure, founding President of French company Geochanvre poses in a field of hemp at Argenteuil-sur-Armancon, France, September 10, 2020. Picture taken September 10, 2020. REUTERS/Charles Platiaiu

A field of hemp for French company Geochanvre making compostable face mask is seen at Argenteuil-sur-Armancon, France, September 10, 2020. Picture taken September 10, 2020. REUTERS/Charles Platiaiu

Frederic Roure, founding President of French company Geochanvre poses in a field of hemp at Argenteuil-sur-Armancon, France, September 10, 2020. Picture taken September 10, 2020. REUTERS/Charles Platiaiu

Frederic Roure, founding President of French company Geochanvre, adjusts his compostable face mask at Argenteuil-sur-Armancon, France, September 10, 2020. Picture taken September 10, 2020. REUTERS/Charles Platiau

A worker fills up a bag with wood pellets as he wears a compostable face mask by French company Geochanvre in Argenteuil-sur-Armancon, France, September 10, 2020. Picture taken September 10, 2020. REUTERS/Charles Platiau

Compostable face masks by French company Geochanvre are made available for workers at a wood pellets company in Argenteuil-sur-Armancon, France, September 10, 2020. Picture taken September 10, 2020. REUTERS/Charles Platiau

The logo of French company Geochanvre is seen at the plant in Lezinnes, France, September 10, 2020. Picture taken September 10, 2020. REUTERS/Charles Platiaiu

A worker manipulates pieces of fiber canvas made from hemp to make compostable face masks at French company Geochanvre in Lezinnes, France, September 10, 2020. Picture taken September 10, 2020. REUTERS/Charles Platiau

Sandrine Boudier, marketing officer of French company Geochanvre, poses with a compostable face mask made from hemp at the company's plant in Lezinnes, France, September 10, 2020. Picture taken September 10, 2020. REUTERS/Charles Platiau

Fibers made from hemp are stored at French company Geochanvre's plant in Lezinnes, France, September 10, 2020. Picture taken September 10, 2020. REUTERS/Charles Platiau

A worker manipulates pieces of fiber canvas made from hemp to make compostable face masks at French company Geochanvre in Lezinnes, France, September 10, 2020. Picture taken September 10, 2020. REUTERS/Charles Platiau

A worker manipulates pieces of fiber canvas made from hemp to make compostable face masks at French company Geochanvre in Lezinnes, France, September 10, 2020. Picture taken September 10, 2020. REUTERS/Charles Platiau

Frederic Roure, founding President of French company Geochanvre, passes by hemp bales stored at his plant at Lezinnes, France, September 10, 2020. Picture taken September 10, 2020. REUTERS/Charles Platiau

Sandrine Boudier, marketing officer of French company Geochanvre, poses with a compostable face mask made from hemp at the company's plant in Lezinnes, France, September 10, 2020. Picture taken September 10, 2020. REUTERS/Charles Platiau

A worker manipulates pieces of fiber canvas made from hemp to make compostable face masks at French company Geochanvre in Lezinnes, France, September 10, 2020. Picture taken September 10, 2020. REUTERS/Charles Platiau

Fiber canvas made from hemp are seen at the plant of French company Geochanvre in Lezinnes, France, September 10, 2020. Picture taken September 10, 2020. REUTERS/Charles Platiau

A compostable face mask made from hemp by French company Geochanvre is seen at the company's plant in Lezinnes, France, September 10, 2020. Picture taken September 10, 2020. REUTERS/Charles Platiau

Frederic Roure, founding President of French company Geochanvre, poses with hemp stems from bales stored at his plant in Lezinnes, France, September 10, 2020. Picture taken September 10, 2020. REUTERS/Charles Platiau

Frederic Roure, founding President of French company Geochanvre, shows hemp stems from bales stored at his plant in Lezinnes, France, September 10, 2020. Picture taken September 10, 2020. REUTERS/Charles Platiau

Frederic Roure, founding President of French company Geochanvre, and his marketing officer Sandrine Boudier check pieces of fiber canvas made from hemp to make compostable face masks at French company Geochanvre in Lezinnes, France, September 10, 2020. Picture taken September 10, 2020. REUTERS/Charles Platiau

Fibers made from hemp are stored at French company Geochanvre's plant in Lezinnes, France, September 10, 2020. Picture taken September 10, 2020. REUTERS/Charles Platiau

Frederic Roure, founding President of French company Geochanvre, poses with fibers made from hemp at his plant in Lezinnes, France, September 10, 2020. Picture taken September 10, 2020. REUTERS/Charles Platiau

Compostable packaging produce labelling is displayed at a Naturalia organic foods grocery store operated by Casino Group, following the outbreak of the coronavirus disease (COVID-19), in Bretigny-sur-Orge, near Paris, France, July 30, 2020. REUTERS/Benoit Tessier