A street cleaner wears a protective suit as she picks up litter next to a bus stop as coronavirus disease (COVID-19) outbreaks continue in Beijing, December 7, 2022. REUTERS/Thomas Peter 

Cleaners abseil down a building while a Chinese flag flies at half mast on the day of the memorial service for former Chinese President Jiang Zemin, in Shanghai, China December 6, 2022. REUTERS/Aly Song 

A street cleaner wears a protective suit as coronavirus disease (COVID-19) outbreaks continue in Beijing, December 4, 2022. REUTERS/Thomas Peter 

People attend a protest against pollution and for cleaner air in Belgrade, Serbia, November 13, 2022. REUTERS/Zorana Jevtic 

People attend a protest against pollution and for cleaner air in Belgrade, Serbia, November 13, 2022. REUTERS/Zorana Jevtic 

People attend a protest against pollution and for cleaner air in Belgrade, Serbia, November 13, 2022. REUTERS/Zorana Jevtic 

People attend a protest against pollution and for cleaner air in Belgrade, Serbia, November 13, 2022. REUTERS/Zorana Jevtic 

People attend a protest against pollution and for cleaner air in Belgrade, Serbia, November 13, 2022. REUTERS/Zorana Jevtic 

People attend a protest against pollution and for cleaner air in Belgrade, Serbia, November 13, 2022. REUTERS/Zorana Jevtic 

People attend a protest against pollution and for cleaner air in Belgrade, Serbia, November 13, 2022. REUTERS/Zorana Jevtic 

People attend a protest against pollution and for cleaner air in Belgrade, Serbia, November 13, 2022. REUTERS/Zorana Jevtic 

People attend a protest against pollution and for cleaner air in Belgrade, Serbia, November 13, 2022. REUTERS/Zorana Jevtic 

Ukrainian serviceman cleans a Polish self-propelled howitzer Krab after a fire toward Russian positions, amid Russia's attack on Ukraine, on a frontline in Donetsk region, Ukraine November 8, 2022. REUTERS/Oleksandr Ratushniak 

A person sits in costume as a street cleaner works nearby in Times Square on Halloween in Manhattan, New York City, U.S., October 31, 2022. REUTERS/Andrew Kelly 

A cleaner is seen outside Apolo, a Barcelona concert hall and night club. Staff from the Apolo found the body of a young man on Wednesday whom the police identified as Australian rugby player Liam Hampson. Barcelona, Spain, October 20, 2022 REUTERS/Nacho Doce 

A cleaner walks past a store of the Kate Spade luxury fashion retailer in a shopping district in Beijing, China, October 19, 2022. REUTERS/Thomas Peter 

A cleaner holds a Dyson vacuum cleaner whilst traveling on an escalator in an office building in London, Britain, September 27, 2022. REUTERS/Kevin Coombs 

A cleaner sweeps a street outside Westminster Abbey, following the funeral of Britain's Queen Elizabeth, in London, Britain September 20, 2022. REUTERS/Tom Nicholson 

Cleaners sweep the streets in Parliament Square, following the funeral of Britain's Queen Elizabeth, in London, Britain September 20, 2022. REUTERS/Tom Nicholson 

"Spidermen" (window cleaners) clean windows outside a high-rise building in Manama, Bahrain, August 27, 2022. REUTERS/Hamad I Mohammed 

"Spidermen" (window cleaners) clean windows outside a high-rise building in Manama, Bahrain, August 27, 2022. REUTERS/Hamad I Mohammed 

"Spidermen" (window cleaners) clean windows outside a high-rise building in Manama, Bahrain, August 27, 2022. REUTERS/Hamad I Mohammed 

"Spidermen" (window cleaners) clean windows outside a high-rise building in Manama, Bahrain, August 27, 2022. REUTERS/Hamad I Mohammed 

Window cleaners work in the planned community of Poundbury, built on land owned by, and with the design approved by Britain's Prince Charles, on the outskirts of Dorchester, Britain, August 19, 2022. REUTERS/Toby Melville 

A worker cleans a glass window of a high-rise building at a business district in Jakarta, Indonesia, July 26, 2022. REUTERS/Willy Kurniawan 

Andrew Otazo, who calls himself an amateur mangrove cleaner, picks up waste from the shore as he removes trash from the mangroves at Crandon Park in Miami, Florida, U.S. July 13, 2022. REUTERS/Marco Bello 

Andrew Otazo, who calls himself an amateur mangrove cleaner, carries a bag as he removes trash from the mangroves at Crandon Park in Miami, Florida, U.S. July 13, 2022. REUTERS/Marco Bello 

Andrew Otazo, who calls himself an amateur mangrove cleaner, weights a bag full of waste after removing trash from the mangroves at Crandon Park in Miami, Florida, U.S. July 13, 2022. REUTERS/Marco Bello 

A view shows bags full of trash removed from the mangroves at Crandon Park by Andrew Otazo, who calls himself an amateur mangrove cleaner, in Miami, Florida, U.S. July 13, 2022. REUTERS/Marco Bello 

Andrew Otazo, who calls himself an amateur mangrove cleaner, throws a bag full of waste after removing trash from the mangroves at Crandon Park in Miami, Florida, U.S. July 13, 2022. REUTERS/Marco Bello 

Andrew Otazo, who calls himself an amateur mangrove cleaner, picks up waste from the shore as he removes trash from the mangroves at Crandon Park in Miami, Florida, U.S. July 13, 2022. REUTERS/Marco Bello 

Andrew Otazo, who calls himself an amateur mangrove cleaner, removes trash from the mangroves at Crandon Park in Miami, Florida, U.S. July 13, 2022. REUTERS/Marco Bello 

Andrew Otazo, who calls himself an amateur mangrove cleaner, wipes away sweat as he removes trash from the mangroves at Crandon Park in Miami, Florida, U.S. July 13, 2022. REUTERS/Marco Bello 

Andrew Otazo, who calls himself an amateur mangrove cleaner, carries a bag as he removes trash from the mangroves at Crandon Park in Miami, Florida, U.S. July 13, 2022. REUTERS/Marco Bello 

Andrew Otazo, who calls himself an amateur mangrove cleaner, carries a bag as he removes trash from the mangroves at Crandon Park in Miami, Florida, U.S. July 13, 2022. REUTERS/Marco Bello 

Andrew Otazo, who calls himself an amateur mangrove cleaner, looks for trash to remove from the mangroves at Crandon Park in Miami, Florida, U.S. July 13, 2022. REUTERS/Marco Bello 

Andrew Otazo, who calls himself an amateur mangrove cleaner, carries a bag as he removes trash from the mangroves at Crandon Park in Miami, Florida, U.S. July 13, 2022. REUTERS/Marco Bello 

Andrew Otazo, who calls himself an amateur mangrove cleaner, picks up trash from the mangroves at Crandon Park in Miami, Florida, U.S. July 13, 2022. REUTERS/Marco Bello 

Andrew Otazo, who calls himself an amateur mangrove cleaner, walks on the shore as he removes trash from the mangroves at Crandon Park in Miami, Florida, U.S. July 13, 2022. REUTERS/Marco Bello 

Andrew Otazo, who calls himself an amateur mangrove cleaner, speaks during an interview with Reuters before removing trash from the mangroves at Crandon Park in Miami, Florida, U.S. July 13, 2022. REUTERS/Marco Bello 

Andrew Otazo, who calls himself an amateur mangrove cleaner, looks for trash to remove from the mangroves at Crandon Park in Miami, Florida, U.S. July 13, 2022. REUTERS/Marco Bello 

Andrew Otazo, who calls himself an amateur mangrove cleaner, looks for trash to remove from the mangroves at Crandon Park in Miami, Florida, U.S. July 13, 2022. REUTERS/Marco Bello 

Andrew Otazo, who calls himself an amateur mangrove cleaner, removes a rope and a bucket from the mangroves at Crandon Park in Miami, Florida, U.S. July 13, 2022. REUTERS/Marco Bello 

Andrew Otazo, who calls himself an amateur mangrove cleaner, walks on the shore as he removes trash from the mangroves at Crandon Park in Miami, Florida, U.S. July 13, 2022. REUTERS/Marco Bello 

Andrew Otazo, who calls himself an amateur mangrove cleaner, looks for trash to remove from the mangroves at Crandon Park in Miami, Florida, U.S. July 13, 2022. REUTERS/Marco Bello 

Andrew Otazo, who calls himself an amateur mangrove cleaner, picks up a paint bucket as he removes trash from the mangroves at Crandon Park in Miami, Florida, U.S. July 13, 2022. REUTERS/Marco Bello 

Andrew Otazo, who calls himself an amateur mangrove cleaner, picks up trash from the mangroves at Crandon Park in Miami, Florida, U.S. July 13, 2022. REUTERS/Marco Bello 

A street cleaner walks past Downing Street in London, Britain July 7, 2022. REUTERS/Phil Noble 

A street cleaner walks past Downing Street in London, Britain July 7, 2022. REUTERS/Phil Noble 

A cleaner works in Caopu, one of the villages that preceded Shenzhen's Special Economic Zone, in Luohu district of Shenzhen, Guangdong province, China July 5, 2022. REUTERS/David Kirton 

Window cleaners wash the glass exterior of an office building, as a building is reflected in it, in Sandton, South Africa, June 15, 2022. REUTERS/Siphiwe Sibeko 

Buildings reflect in the glass exterior of an office building, as window cleaners wash it, in Sandton, South Africa, June 15, 2022. REUTERS/Siphiwe Sibeko 

A street cleaner walks past Downing Street in London, Britain June 6, 2022. REUTERS/Toby Melville 

A window cleaner wipes the glass roof of the house of the Federal Press Conference (Bundespressekonferenz) in Berlin, Germany May 30, 2022. REUTERS/Annegret Hilse 

Window cleaners wipe the glass roof of the house of the Federal Press Conference (Bundespressekonferenz) in Berlin, Germany May 30, 2022. REUTERS/Annegret Hilse 

Street cleaners rest on a bench in Moscow, Russia May 27, 2022. REUTERS/Evgenia Novozhenina 

People take part in a demonstration in support of security guards and cleaners, who work in government offices following information detailed in the Sue Gray report into "Partygate" in London, Britain May 27, 2022. REUTERS/John Sibley 

People hold banners as they take part in a demonstration in support of security guards and cleaners, who work in government offices following information detailed in the Sue Gray report into "Partygate" in London, Britain May 27, 2022. REUTERS/John Sibley 

A broom and mop are seen next to banners during a demonstration in support of security guards and cleaners, who work in government offices following information detailed in the Sue Gray report into "Partygate" in London, Britain May 27, 2022. REUTERS/John Sibley 

Banners and flowers are placed at the entrance to Downing Street during a demonstration in support of security guards and cleaners, who work in government offices following information detailed in the Sue Gray report into "Partygate" in London, Britain May 27, 2022. REUTERS/John Sibley