Lava rolls down behind a cement factory in Los Llanos as the Cumbre Vieja volcano continues to erupt on the Canary Island of La Palma, as seen from Tajuya, Spain, October 11, 2021. REUTERS/Sergio Perez

A cement factory in Los Llanos is seen on fire as the Cumbre Vieja volcano continues to erupt on the Canary Island of La Palma, as seen from Tajuya, Spain, October 11, 2021. REUTERS/Sergio Perez

Lava rolls down behind a cement factory in Los Llanos as the Cumbre Vieja volcano continues to erupt on the Canary Island of La Palma, as seen from Tajuya, Spain, October 11, 2021. REUTERS/Sergio Perez

Lava rolls down behind a cement factory in Los Llanos as the Cumbre Vieja volcano continues to erupt on the Canary Island of La Palma, as seen from Tajuya, Spain, October 11, 2021. REUTERS/Sergio Perez

A construction worker pulls a cart with a bag of cement amid a severe crisis of the economy, in Buenos Aires, Argentina September 21, 2021. REUTERS/Agustin Marcarian

U.S. President Joe Biden talks about the layers of cement that collapsed as he delivers remarks after speaking to family members whose loved ones died or are missing after the building collapse in Surfside in Miami, Florida U.S., July 1, 2021. REUTERS/Kevin Lamarque

Cement manufacturers are among the leading producers of climate-damaging carbon dioxide.

Buildings set up using miniature sustainable and reusable building blocks made of polymer concrete instead of cement are pictured at the Thuringian start-up Polycare in Gehlberg near Suhl, eastern Germany, June 9, 2021. Picture taken June 9, 2021. REUTERS/Karina Hessland-Wissel

Developer Solomon Akpoyomare and Robby Lenz of the Thuringian start-up Polycare work in the production of miniature sustainable and reusable building blocks made of polymer concrete instead of cement in Gehlberg near Suhl, eastern Germany, June 9, 2021. Picture taken June 9, 2021. REUTERS/Karina Hessland-Wissel

Staff of the Thuringian start-up Polycare work in the production of miniature sustainable and reusable building blocks made of polymer concrete instead of cement in Gehlberg near Suhl, eastern Germany, June 9, 2021. Picture taken June 9, 2021. REUTERS/Karina Hessland-Wissel

Miniature sustainable and reusable building blocks made of polymer concrete instead of cement are pictured at the Thuringian start-up Polycare in Gehlberg near Suhl, eastern Germany, June 9, 2021. Picture taken June 9, 2021. REUTERS/Karina Hessland-Wissel

Andreas Kunsmann of the Thuringian start-up Polycare works in the production of miniature sustainable and reusable building blocks made of polymer concrete instead of cement in Gehlberg near Suhl, eastern Germany, June 9, 2021. Picture taken June 9, 2021. REUTERS/Karina Hessland-Wissel

Miniature sustainable and reusable building blocks made of polymer concrete instead of cement are pictured at the Thuringian start-up Polycare in Gehlberg near Suhl, eastern Germany, June 9, 2021. Picture taken June 9, 2021. REUTERS/Karina Hessland-Wissel

Andreas Kunsmann of the Thuringian start-up Polycare works in the production of miniature sustainable and reusable building blocks made of polymer concrete instead of cement in Gehlberg near Suhl, eastern Germany, June 9, 2021. Picture taken June 9, 2021. REUTERS/Karina Hessland-Wissel

Different sand types from various deserts used to make miniature sustainable and reusable building blocks made of polymer concrete instead of cement are pictured at the Thuringian start-up Polycare in Gehlberg near Suhl, eastern Germany, June 9, 2021. Picture taken June 9, 2021. REUTERS/Karina Hessland-Wissel

Miniature sustainable and reusable building blocks made of polymer concrete instead of cement are pictured at the Thuringian start-up Polycare in Gehlberg near Suhl, eastern Germany, June 9, 2021. Picture taken June 9, 2021. REUTERS/Karina Hessland-Wissel

Buildings set up using miniature sustainable and reusable building blocks made of polymer concrete instead of cement are pictured at the Thuringian start-up Polycare in Gehlberg near Suhl, eastern Germany, June 9, 2021. Picture taken June 9, 2021. REUTERS/Karina Hessland-Wissel

Miniature sustainable and reusable building blocks made of polymer concrete instead of cement are pictured at the Thuringian start-up Polycare in Gehlberg near Suhl, eastern Germany, June 9, 2021. Picture taken June 9, 2021. REUTERS/Karina Hessland-Wissel

Andreas Kunsmann of the Thuringian start-up Polycare works in the production of miniature sustainable and reusable building blocks made of polymer concrete instead of cement in Gehlberg near Suhl, eastern Germany, June 9, 2021. Picture taken June 9, 2021. REUTERS/Karina Hessland-Wissel

The developer Solomon Akpoyomare of the Thuringian start-up Polycare works with different and new materials for the production of miniature sustainable and reusable building blocks made of polymer concrete instead of cement in Gehlberg near Suhl, eastern Germany, June 9, 2021. Picture taken June 9, 2021. REUTERS/Karina Hessland-Wissel

Miniature sustainable and reusable building blocks made of polymer concrete instead of cement are pictured at the Thuringian start-up Polycare in Gehlberg near Suhl, eastern Germany, June 9, 2021. Picture taken June 9, 2021. REUTERS/Karina Hessland-Wissel

The inside of a building set up using miniature sustainable and reusable building blocks made of polymer concrete instead of cement is pictured at the Thuringian start-up Polycare in Gehlberg near Suhl, eastern Germany, June 9, 2021. Picture taken June 9, 2021. REUTERS/Karina Hessland-Wissel

Andreas Kunsmann of the Thuringian start-up Polycare works in the production of miniature sustainable and reusable building blocks made of polymer concrete instead of cement in Gehlberg near Suhl, eastern Germany, June 9, 2021. Picture taken June 9, 2021. REUTERS/Karina Hessland-Wissel

Andreas Kunsmann of the Thuringian start-up Polycare poses for a picture with miniature sustainable and reusable building blocks made of polymer concrete instead of cement in Gehlberg near Suhl, eastern Germany, June 9, 2021. Picture taken June 9, 2021. REUTERS/Karina Hessland-Wissel

Miniature sustainable and reusable building blocks made of polymer concrete instead of cement are pictured at the Thuringian start-up Polycare in Gehlberg near Suhl, eastern Germany, June 9, 2021. Picture taken June 9, 2021. REUTERS/Karina Hessland-Wissel

Andreas Kunsmann of the Thuringian start-up Polycare poses for a picture with miniature sustainable and reusable building blocks made of polymer concrete instead of cement in Gehlberg near Suhl, eastern Germany, June 9, 2021. Picture taken June 9, 2021. REUTERS/Karina Hessland-Wissel

A worker walks past outside the main entrance from a concrete plant of Mexican cement maker CEMEX, in Monterrey, Mexico June 8, 2021. Picture taken June 8, 2021. REUTERS/Daniel Becerril

The logo of Mexican cement maker CEMEX is pictured at it's plant in Monterrey, Mexico June 8, 2021. Picture taken June 8, 2021. REUTERS/Daniel Becerril

General view shows a concrete plant of Mexican cement maker CEMEX, in Monterrey, Mexico June 8, 2021. Picture taken June 8, 2021. REUTERS/Daniel Becerril

People walk on a new cement walkway to improve access for people with disabilities as they visit the Parthenon temple atop the Acropolis hill in Athens, Greece, June 8, 2021. REUTERS/Alkis Konstantinidis

A woman poses for a photo on a new cement walkway next to the Parthenon temple, built to improve access for people with disabilities atop the Acropolis hill, in Athens, Greece, June 8, 2021. REUTERS/Alkis Konstantinidis

A woman poses for a photo on a new cement walkway next to the Parthenon temple, built to improve access for people with disabilities atop the Acropolis hill, in Athens, Greece, June 8, 2021. REUTERS/Alkis Konstantinidis

A man steps off a new cement walkway next to the Parthenon temple, built to improve access for people with disabilities atop the Acropolis hill, in Athens, Greece, June 8, 2021. REUTERS/Alkis Konstantinidis

A woman rests on a new cement walkway next to the Parthenon temple, built to improve access for people with disabilities atop the Acropolis hill, in Athens, Greece, June 8, 2021. REUTERS/Alkis Konstantinidis

Palestinian Hamas Gaza Chief Yehya Al-Sinwar and head of the Egyptian general intelligence Abbas Kamel walk as they meet in Gaza May 31, 2021. REUTERS/Mohammed Salem/Pool

Palestinian Hamas Gaza Chief Yehya Al-Sinwar and head of the Egyptian general intelligence Abbas Kamel walk as they meet in Gaza May 31, 2021. REUTERS/Mohammed Salem/Pool

Palestinian Hamas Gaza Chief Yehya Al-Sinwar and head of the Egyptian general intelligence Abbas Kamel walk as they meet in Gaza May 31, 2021. REUTERS/Mohammed Salem/Pool

Palestinian Hamas Gaza Chief Yehya Al-Sinwar hugs head of the Egyptian general intelligence Abbas Kamel as they meet in Gaza May 31, 2021. REUTERS/Mohammed Salem/Pool

Palestinian Hamas Gaza Chief Yehya Al-Sinwar and Head of the Egyptian general intelligence Abbas Kamel walk as they meet in Gaza May 31, 2021. REUTERS/Mohammed Salem/Pool

General view shows a concrete plant of Mexican cement maker CEMEX, in Monterrey, Mexico May 26, 2021. Picture taken May 26, 2021. REUTERS/Daniel Becerril

A worker uses his mobile phone at a concrete plant of Mexican cement maker CEMEX, in Monterrey, Mexico May 25, 2021. Picture taken May 25, 2021. REUTERS/Daniel Becerril

John Pumrey, 40, operates a wire line truck used for detecting the metal casings used in gas wells, they are then removed and the well is plugged with cement, Roan County, West Virginia, U.S., May 17, 2021. Picture taken May 17, 2021. REUTERS/Dane Rhys

Israel forces place cement blocks at the entrance of Sheikh Jarrah neighbourhood of East Jerusalem May 16, 2021. REUTERS/Ammar Awad

Israel forces place cement blocks at the entrance of Sheikh Jarrah neighbourhood of East Jerusalem May 16, 2021. REUTERS/Ammar Awad

A man drops a bag of Dangote cement while offloading a truck in Abuja, Nigeria May 11, 2021. Picture taken May 11, 2021. REUTERS/Afolabi Sotunde

A man carries a bag of Dangote cement while offloading a truck in Abuja, Nigeria May 11, 2021. Picture taken May 11, 2021. REUTERS/Afolabi Sotunde

A man carries a bag of Dangote cement while offloading a truck in Abuja, Nigeria May 11, 2021. Picture taken May 11, 2021. REUTERS/Afolabi Sotunde

A man carries a moulded block at a block making centre in Abuja, Nigeria May 10, 2021. Picture taken May 10, 2021. REUTERS/Afolabi Sotunde

A man carries a moulded block at a block making centre in Abuja, Nigeria May 10, 2021. Picture taken May 10, 2021. REUTERS/Afolabi Sotunde

A woman uses a water hose to sprinkle water on moulded blocks in Abuja, Nigeria May 10, 2021. Picture taken May 10, 2021. REUTERS/Afolabi Sotunde

A man carries a moulded block at a block making centre in Abuja, Nigeria May 10, 2021. Picture taken May 10, 2021. REUTERS/Afolabi Sotunde

A cement factory is pictured during daily power cuts that are affecting activities and businesses in Abidjan, Ivory Coast May 8, 2021. Picture taken May 8, 2021. REUTERS/Luc Gnago

A woman talks on her mobile phone by a cement play structure at Vincent Lugo park during the outbreak of the coronavirus disease (COVID-19), in San Gabriel, California, U.S., April 16, 2021. Picture taken April 16, 2021. REUTERS/Mario Anzuoni

A boy rests on a cement play structure shaped like a whale at Vincent Lugo park during the outbreak of the coronavirus disease (COVID-19), in San Gabriel, California, U.S., April 16, 2021. Picture taken April 16, 2021. REUTERS/Mario Anzuoni

A girl slides down on a cement play structure at Vincent Lugo park during the outbreak of the coronavirus disease (COVID-19), in San Gabriel, California, U.S., April 16, 2021. Picture taken April 16, 2021. REUTERS/Mario Anzuoni

Aerial view of gravediggers wearing protective suits as they perform exhumations to open space on cement graves as new burials are suspended, except private deposits and children, at Vila Nova Cachoeirinha cemetery amid the outbreak of the coronavirus disease (COVID-19) in Sao Paulo, Brazil, April 1, 2021. Picture taken with a drone. REUTERS/Amanda Perobelli

Aerial view of gravediggers wearing protective suits as they perform exhumations to open space on cement graves as new burials are suspended, except private deposits and children, at Vila Nova Cachoeirinha cemetery amid the outbreak of the coronavirus disease (COVID-19) in Sao Paulo, Brazil, April 1, 2021. Picture taken with a drone. REUTERS/Amanda Perobelli

Aerial view of gravediggers wearing protective suits as they perform exhumations to open space on cement graves as new burials are suspended, except private deposits and children, at Vila Nova Cachoeirinha cemetery amid the outbreak of the coronavirus disease (COVID-19) in Sao Paulo, Brazil, April 1, 2021. Picture taken with a drone. REUTERS/Amanda Perobelli

Marcelo Christian, 38, a gravedigger wearing a protective suit looks on during exhumations to open space on cement graves as new burials are suspended, except private deposits and children, at Vila Nova Cachoeirinha cemetery amid the outbreak of the coronavirus disease (COVID-19) in Sao Paulo, Brazil, April 1, 2021. REUTERS/Amanda Perobelli

A gravedigger wearing a protective suit handles pieces of an old damaged coffin during exhumations to open space on cement graves as new burials are suspended, except private deposits and children, at Vila Nova Cachoeirinha cemetery amid the outbreak of the coronavirus disease (COVID-19) in Sao Paulo, Brazil, April 1, 2021. REUTERS/Amanda Perobelli