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

Ted Gachanga and Michael Kanywiria agronomists who co-own Sprout Organic company sample a compost that is sold to urban farmers to grow food in squeezed spaces during the coronavirus disease (COVID-19) outbreak in Nairobi, Kenya June 30, 2020. Picture taken June 30, 2020. REUTERS/Edwin Waita

Ted Gachanga and Michael Kanywiria agronomists who co-own Sprout Organic company carry samples of a compost that is sold to urban farmers to grow food in squeezed spaces during the coronavirus disease (COVID-19) outbreak in Nairobi, Kenya June 30, 2020. Picture taken June 30, 2020. REUTERS/Edwin Waita

Ted Gachanga and Michael Kanywiria agronomists who co-own Sprout Organic company display samples of vegetables grown in a compost that is sold to urban farmers to grow food in squeezed spaces during the coronavirus disease (COVID-19) outbreak in Nairobi, Kenya June 30, 2020. Picture taken June 30, 2020. REUTERS/Edwin Waita

Ted Gachanga, an agronomist who co-owns Sprout Organic company samples a compost that is sold to urban farmers to grow food in squeezed spaces during the coronavirus disease (COVID-19) outbreak in Nairobi, Kenya June 30, 2020. Picture taken June 30, 2020. REUTERS/Edwin Waita

Ted Gachanga and Michael Kanywiria agronomists who co-own Sprout Organic company stand between sacks of a compost that is sold to urban farmers to grow food in squeezed spaces during the coronavirus disease (COVID-19) outbreak in Nairobi, Kenya June 30, 2020. Picture taken June 30, 2020. REUTERS/Edwin Waita

Sacks of compost by the Sprout Organic company are arranged before being sold to urban farmers to grow food in squeezed spaces during the coronavirus disease (COVID-19) outbreak in Nairobi, Kenya June 30, 2020. Picture taken June 30, 2020. REUTERS/Edwin Waita

Frank Ohlenschlager, 57, CEO of almond marketing company Almendrehesa, checks the compost next to almond trees in a field where farmers use techniques aimed at bringing new life to the land in Chirivel, near Granada, Spain, March 9, 2020. Picture taken March 9, 2020. REUTERS/Jon Nazca

Bags of compost are seen behind a locked gate to a garden centre following the outbreak of the coronavirus disease (COVID-19), Manchester, Britain, May 10, 2020. REUTERS/Phil Noble

Jaime Calder looks checks out compost in her vegetable garden in Round Rock, Texas, amid the coronavirus disease (COVID-19) spread in the U.S., April 7, 2020. Picture taken April 7, 2020. REUTERS/Sergio Flores

Compost facility manager and a staff member inspect a food composting machine at the facility where Mana Cafe processes its waste, in Sheung Shui, Hong Kong, China April 14, 2020. Picture taken April 14, 2020. REUTERS/Pak Yiu

A staff member prepares a salad next to compostable food packaging at Mana Cafe in Wan Chai, Hong Kong, China April 14, 2020. Picture taken April 14, 2020. REUTERS/Pak Yiu

A Palestinian man works in a compost production factory that was inaugurated as part of an agricultural development project funded by the European Union, on the outskirts of Gaza City February 17, 2020. REUTERS/Ibraheem Abu Mustafa

Ayman Fteiha, an office manager of the European Union Representative in the Palestinian Territories, gestures as he inaugurates a compost production factory as part of an agricultural development project funded by EU, on the outskirts of Gaza City February 17, 2020. REUTERS/Ibraheem Abu Mustafa

A Palestinian man works in a compost production factory that was inaugurated as part of an agricultural development project funded by the European Union, on the outskirts of Gaza City February 17, 2020. REUTERS/Ibraheem Abu Mustafa

Jonathan Attias makes wooden spoons in their the wood-and-straw hut, a "compostable" house made out of natural and recycled materials, in a forest area near Chasteaux, central France, January 23, 2020. The young couple are the driving force of the "Desobeissance fertile" (Fertile Disobediance) movement that brings together back-to-nature enthusiasts with landowners willing to let them build ecological dwellings on their land. Picture taken January 23, 2020. REUTERS/Regis Duvignau

A view shows the landscape near the wood-and-straw hut, a "compostable" house made out of natural and recycled materials, built by Jonathan Attias and Caroline Perez in a forest area near Chasteaux, central France, January 24, 2020. The young couple are the driving force of the "Desobeissance fertile" (Fertile Disobediance) movement that brings together back-to-nature enthusiasts with landowners willing to let them build ecological dwellings on their land. Picture taken January 24, 2020. REUTERS/Regis Duvignau

Jonathan Attias cycles to power the washing machine near their wood-and-straw hut, a "compostable" house made out of natural and recycled materials, in a forest area near Chasteaux, central France, January 23, 2020. The young couple are the driving force of the "Desobeissance fertile" (Fertile Disobediance) movement that brings together back-to-nature enthusiasts with landowners willing to let them build ecological dwellings on their land. Picture taken January 23, 2020. REUTERS/Regis Duvignau

Caroline Perez works near the wood-and-straw hut, a "compostable" house made out of natural and recycled materials, in a forest area near Chasteaux, central France, January 23, 2020. The young couple are the driving force of the "Desobeissance fertile" (Fertile Disobediance) movement that brings together back-to-nature enthusiasts with landowners willing to let them build ecological dwellings on their land. Picture taken January 23, 2020. REUTERS/Regis Duvignau

A view shows the kitchen inside the wood-and-straw hut, a "compostable" house made out of natural and recycled materials, built by Jonathan Attias and Caroline Perez in a forest area near Chasteaux, central France, January 23, 2020. The young couple are the driving force of the "Desobeissance fertile" (Fertile Disobediance) movement that brings together back-to-nature enthusiasts with landowners willing to let them build ecological dwellings on their land. Picture taken January 23, 2020. REUTERS/Regis Duvignau

Jonathan Attias plays the flute with his daughter Mani inside their wood-and-straw hut, a "compostable" house made out of natural and recycled materials, in a forest area near Chasteaux, central France, January 23, 2020. The young couple are the driving force of the "Desobeissance fertile" (Fertile Disobediance) movement that brings together back-to-nature enthusiasts with landowners willing to let them build ecological dwellings on their land. Picture taken January 23, 2020. REUTERS/Regis Duvignau

Jonathan Attias works in their wood-and-straw hut, a "compostable" house made out of natural and recycled materials, in a forest area near Chasteaux, central France, January 23, 2020. The young couple are the driving force of the "Desobeissance fertile" (Fertile Disobediance) movement that brings together back-to-nature enthusiasts with landowners willing to let them build ecological dwellings on their land. Picture taken January 23, 2020. REUTERS/Regis Duvignau

Caroline Perez prepares stinging nettles for meal in their wood-and-straw hut, a "compostable" house made out of natural and recycled materials, in a forest area near Chasteaux, central France, January 23, 2020. The young couple are the driving force of the "Desobeissance fertile" (Fertile Disobediance) movement that brings together back-to-nature enthusiasts with landowners willing to let them build ecological dwellings on their land. Picture taken January 23, 2020. REUTERS/Regis Duvignau

Jonathan Attias works near their wood-and-straw hut, a "compostable" house made out of natural and recycled materials, in a forest area near Chasteaux, central France, January 23, 2020. The young couple are the driving force of the "Desobeissance fertile" (Fertile Disobediance) movement that brings together back-to-nature enthusiasts with landowners willing to let them build ecological dwellings on their land. Picture taken January 23, 2020. REUTERS/Regis Duvignau

Books are pictured on a table inside the wood-and-straw hut, a "compostable" house made out of natural and recycled materials, built by Jonathan Attias and Caroline Perez in a forest area near Chasteaux, central France, January 23, 2020. The young couple are the driving force of the "Desobeissance fertile" (Fertile Disobediance) movement that brings together back-to-nature enthusiasts with landowners willing to let them build ecological dwellings on their land. Picture taken January 23, 2020. REUTERS/Regis Duvignau

Jonathan Attias and Caroline Perez, their daughters Lia and Mani pose in their wood-and-straw hut, a "compostable" house made out of natural and recycled materials, in a forest area near Chasteaux, central France, January 23, 2020. The young couple are the driving force of the "Desobeissance fertile" (Fertile Disobediance) movement that brings together back-to-nature enthusiasts with landowners willing to let them build ecological dwellings on their land. Picture taken January 23, 2020. REUTERS/Regis Duvignau

A view shows the wood-and-straw hut, a "compostable" house made out of natural and recycled materials, built by Jonathan Attias and Caroline Perez in a forest area near Chasteaux, central France, January 23, 2020. The young couple are the driving force of the "Desobeissance fertile" (Fertile Disobediance) movement that brings together back-to-nature enthusiasts with landowners willing to let them build ecological dwellings on their land. Picture taken January 23, 2020. REUTERS/Regis Duvignau

Jonathan Attias and Caroline Perez with their daughter Mani pose near their wood-and-straw hut, a "compostable" house made out of natural and recycled materials, in a forest area near Chasteaux, central France, January 23, 2020. The young couple are the driving force of the "Desobeissance fertile" (Fertile Disobediance) movement that brings together back-to-nature enthusiasts with landowners willing to let them build ecological dwellings on their land. Picture taken January 23, 2020. REUTERS/Regis Duvignau

Jonathan Attias works in the vegetable garden near their wood-and-straw hut, a "compostable" house made out of natural and recycled materials, in a forest area near Chasteaux, central France, January 23, 2020. The young couple are the driving force of the "Desobeissance fertile" (Fertile Disobediance) movement that brings together back-to-nature enthusiasts with landowners willing to let them build ecological dwellings on their land. Picture taken January 23, 2020. REUTERS/Regis Duvignau

Caroline Perez works in front of their wood-and-straw hut, a "compostable" house made out of natural and recycled materials, in a forest area near Chasteaux, central France, January 23, 2020. The young couple are the driving force of the "Desobeissance fertile" (Fertile Disobediance) movement that brings together back-to-nature enthusiasts with landowners willing to let them build ecological dwellings on their land. Picture taken January 23, 2020. REUTERS/Regis Duvignau

A view shows the wood-and-straw hut, a "compostable" house made out of natural and recycled materials, built by Jonathan Attias and Caroline Perez in a forest area near Chasteaux, central France, January 24, 2020. The young couple are the driving force of the "Desobeissance fertile" (Fertile Disobediance) movement that brings together back-to-nature enthusiasts with landowners willing to let them build ecological dwellings on their land. Picture taken January 24, 2020. REUTERS/Regis Duvignau

Jonathan Attias and Caroline Perez, their daughters Lia and Mani, are pictured inside their wood-and-straw hut, a "compostable" house made out of natural and recycled materials, in a forest area near Chasteaux, central France, January 23, 2020. The young couple are the driving force of the "Desobeissance fertile" (Fertile Disobediance) movement that brings together back-to-nature enthusiasts with landowners willing to let them build ecological dwellings on their land. Picture taken January 23, 2020. REUTERS/Regis Duvignau

Co-founder of Kompola project Nikita Shulga shows how to prepare compost in a container at a school backyard in Kiev, Ukraine November 5, 2019. Picture taken November 5, 2019. REUTERS/Valentyn Ogirenko