Volunteers take part in a beach cleanup event, organized to mark Earth Day, in Keelung, Taiwan, April 24, 2021. REUTERS/Ann Wang

The SpaceX starship SN15 nosecone is fitted with one of its flaps, as cleanup crew continue to remove what's left of the starship SN11 after it failed to land safely, in Boca Chica, Texas, U.S. March 31,2021. REUTERS/Gene Blevins

The SpaceX starship SN15 nosecone is fitted with one of its flaps, as cleanup crew continue to remove what's left of the starship SN11 after it failed to land safely, in Boca Chica, Texas, U.S. March 31,2021. REUTERS/Gene Blevins

A Sea Shepherd NGO volunteer dives with a turtle after an ocean cleaning to remove garbage at Ancora island in Buzios, Rio de Janeiro state, Brazil March 14, 2021. Picture taken March 14, 2021. REUTERS/Pilar Olivares

Sea Shepherd NGO volunteers ship floats at Joao Fernandes beach in Buzios, Rio de Janeiro state, Brazil March 13, 2021. Picture taken March 13, 2021 with a drone. REUTERS/Pilar Olivares

A turtle swims after an ocean cleaning by Sea Shepherd NGO volunteers to remove garbage at Ancora island in Buzios, Rio de Janeiro state, Brazil March 14, 2021. Picture taken March 14, 2021. REUTERS/Pilar Olivares

A turtle swims after an ocean cleaning by Sea Shepherd NGO volunteers to remove garbage at Ancora island in Buzios, Rio de Janeiro state, Brazil March 14, 2021. Picture taken March 14, 2021. REUTERS/Pilar Olivares TPX IMAGES OF THE DAY

A volunteer of the Sea Shepherd NGO shows garbage after cleaning it from the ocean floor at Joao Fernandes beach in Buzios, Rio de Janeiro state, Brazil March 13, 2021. Picture taken March 13, 2021. REUTERS/Pilar Olivares

Volunteers of the Sea Shepherd NGO, dive to remove garbage from the sea at Joao Fernandes beach in Buzios, Rio de Janeiro state, Brazil March 13, 2021. Picture taken March 13, 2021. REUTERS/Pilar Olivares

A volunteer of the Sea Shepherd NGO shows remains of garbage after oceanic cleaning at Joao Fernandes beach in Buzios, Rio de Janeiro state, Brazil March 13, 2021. Picture taken March 13, 2021. REUTERS/Pilar Olivares

Volunteers of the Sea Shepherd NGO, dive to remove garbage from the sea in the Joao Fernandes beach in the city of Buzios, Rio de Janeiro state, Brazil March 13, 2021. Picture taken March 13, 2021. REUTERS/Pilar Olivares

A forensic officer investigates outside a police station the day after demonstrators clashed with police during a protest against a proposed new policing bill in Bristol, Britain, March 22, 2021. REUTERS/Paul Childs

Forensic officers work outside the station the morning after demonstrators clashed with police during a protest against a proposed new policing bill in Bristol, Britain, March 22, 2021. REUTERS/Paul Childs

A forensic officer takes pictures outside a police station the morning after demonstrators clashed with police during a protest against a proposed new policing bill in Bristol, Britain, March 22, 2021. REUTERS/Paul Childs

A forensic officer takes pictures outside a police station the morning after demonstrators clashed with police during a protest against a proposed new policing bill in Bristol, Britain, March 22, 2021. REUTERS/Paul Childs

Police officers stand outside the station the morning after demonstrators clashed with police during a protest against a proposed new policing bill in Bristol, Britain, March 22, 2021. REUTERS/Paul Childs

A street cleaner removes graffiti outside a police station the morning after demonstrators clashed with police during a protest against a proposed new policing bill in Bristol, Britain, March 22, 2021. REUTERS/Paul Childs

A street cleaner removes graffiti outside a police station the morning after demonstrators clashed with police during a protest against a proposed new policing bill in Bristol, Britain, March 22, 2021. REUTERS/Paul Childs

Chief Constable of the Avon and Somerset Police Andy Marsh speaks with the media outside the station the morning after demonstrators clashed with police during a protest against a proposed new policing bill in Bristol, Britain, March 22, 2021. REUTERS/Paul Childs

Chief Constable of the Avon and Somerset Police Andy Marsh speaks with the media outside the station the morning after demonstrators clashed with police during a protest against a proposed new policing bill in Bristol, Britain, March 22, 2021. REUTERS/Paul Childs

Chief Constable of the Avon and Somerset Police Andy Marsh speaks with the media outside the station the morning after demonstrators clashed with police during a protest against a proposed new policing bill in Bristol, Britain, March 22, 2021. REUTERS/Paul Childs

Police officers stand guard outside their station the morning after demonstrators clashed with police during a protest against a proposed new policing bill in Bristol, Britain, March 22, 2021. REUTERS/Paul Childs

Broken glass is seen outside a police station the morning after demonstrators clashed with police during a protest against a proposed new policing bill in Bristol, Britain, March 22, 2021. REUTERS/Paul Childs

A member of the press defends himself as a man attacked him outside a police station the morning after demonstrators clashed with police during a protest against a proposed new policing bill in Bristol, Britain, March 22, 2021. REUTERS/Paul Childs

A man attacks a member of the press outside a police station the morning after demonstrators clashed with police during a protest against a proposed new policing bill in Bristol, Britain, March 22, 2021. REUTERS/Paul Childs

A man cleans outside a police station the morning after demonstrators clashed with police during a protest against a proposed new policing bill in Bristol, Britain, March 22, 2021. REUTERS/Paul Childs

A man cleans outside a police station the morning after demonstrators clashed with police during a protest against a proposed new policing bill in Bristol, Britain, March 22, 2021. REUTERS/Paul Childs

A man cleans outside a police station the morning after demonstrators clashed with police during a protest against a proposed new policing bill in Bristol, Britain, March 22, 2021. REUTERS/Paul Childs

Broken glass is seen outside a police station the morning after demonstrators clashed with police during a protest against a proposed new policing bill in Bristol, Britain, March 22, 2021. REUTERS/Paul Childs

A street cleaner removes graffiti outside a police station the morning after demonstrators clashed with police during a protest against a proposed new policing bill in Bristol, Britain, March 22, 2021. REUTERS/Paul Childs

A placard is seen in a trash bin as a street cleaner works outside a police station the morning after demonstrators clashed with police during a protest against a proposed new policing bill in Bristol, Britain, March 22, 2021. REUTERS/Paul Childs

Workers clean inside a police station the morning after demonstrators clashed with police during a protest against a proposed new policing bill in Bristol, Britain, March 22, 2021. REUTERS/Paul Childs

Street cleaners work outside a police station the morning after demonstrators clashed with police during a protest against a proposed new policing bill in Bristol, Britain, March 22, 2021. REUTERS/Paul Childs

A street cleaner removes graffiti outside a police station the morning after demonstrators clashed with police during a protest against a proposed new policing bill in Bristol, Britain, March 22, 2021. REUTERS/Paul Childs

Street cleaners remove graffiti outside a police station the morning after demonstrators clashed with police during a protest against a proposed new policing bill in Bristol, Britain, March 22, 2021. REUTERS/Paul Childs

A sign is seen outside a police station the morning after demonstrators clashed with police during a protest against a proposed new policing bill in Bristol, Britain, March 22, 2021. REUTERS/Paul Childs

An aerial view shows disposed garbage on the shore of Guanabara bay in Rio de Janeiro, Brazil, March 17, 2021. One of the legacy promises of the 2016 Olympic Games in Rio de Janeiro was the cleanup of Guanabara Bay. After four years, the situation has worsened, according to data from state environmental institute Inea. The environmental degradation of the water bodies in metropolitan Rio is putting at both local ecosystems and public health at risk, says Brazilian biologist Mario Moscatelli. Picture taken with a drone. REUTERS/Pilar Olivares SEARCH "GLOBAL WATER" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

An aerial view shows people fishing from a wooden bridge at the Pisang Batu river, which flows through a densely populated area and is polluted by domestic waste, in Bekasi, on the outskirts of Jakarta, Indonesia, March 16, 2021. Pisang Batu river, on the outskirts of Jakarta, made national headlines in 2019 after plastic garbage and organic waste from nearby households completely covered its surface stretching 1.5 kilometres. The river has fewer waste after several cleanup operations, but the water is black, emitting a strong odour. Picture taken with a drone. REUTERS/Willy Kurniawan SEARCH "GLOBAL WATER" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Excavators are seen parked before dredging as part of a cleanup operation at a canal by River Nile near Kerdasa on the outskirts of Cairo, Egypt March 10, 2021. REUTERS/Amr Abdallah Dalsh

A general view of the PES Refinery on the banks of the Schuylkill River in Philadelphia, Pennsylvania, U.S., October 31, 2020. Picture taken October 31, 2020. REUTERS/Dane Rhys

A phased construction map is seen inside the PES Refinery in Philadelphia, Pennsylvania, U.S., November 2, 2020. Picture taken November 2, 2020. REUTERS/Dane Rhys

A view inside the PES Refinery in Philadelphia, Pennsylvania, U.S., November 2, 2020. Picture taken November 2, 2020. REUTERS/Dane Rhys

A view inside the PES Refinery in Philadelphia, Pennsylvania, U.S., November 2, 2020. Picture taken November 2, 2020. REUTERS/Dane Rhys

A view inside the PES Refinery in Philadelphia, Pennsylvania, U.S., November 2, 2020. Picture taken November 2, 2020. REUTERS/Dane Rhys

A tug boat turns in front of the PES Refinery on the Schuylkill River in Philadelphia, Pennsylvania, U.S., October 31, 2020. Picture taken October 31, 2020. REUTERS/Dane Rhys

A view of the PES Refinery in Philadelphia, Pennsylvania, U.S., November 2, 2020. Picture taken November 2, 2020. REUTERS/Dane Rhys

A general view of the PES Refinery in Philadelphia, Pennsylvania, U.S., November 2, 2020. Picture taken November 2, 2020. REUTERS/Dane Rhys

A view inside the PES Refinery in Philadelphia, Pennsylvania, U.S., November 2, 2020. Picture taken November 2, 2020. REUTERS/Dane Rhys

A view of the PES Refinery in Philadelphia, Pennsylvania, U.S., November 2, 2020. Picture taken November 2, 2020. REUTERS/Dane Rhys

A deer is seen inside the PES Refinery in Philadelphia, Pennsylvania, U.S., November 2, 2020. Picture taken November 2, 2020. REUTERS/Dane Rhys

A deer is seen inside the PES Refinery in Philadelphia, Pennsylvania, U.S., November 2, 2020. Picture taken November 2, 2020. REUTERS/Dane Rhys

A building torn by the explosion is seen at the PES Refinery in Philadelphia, Pennsylvania, U.S., November 2, 2020. Picture taken November 2, 2020. REUTERS/Dane Rhys

A view of the PES Refinery in Philadelphia, Pennsylvania, U.S., October 31, 2020. Picture taken October 31, 2020. REUTERS/Dane Rhys

The PES Refinery is reflected in water in Philadelphia, Pennsylvania, U.S., November 2, 2020. Picture taken November 2, 2020. REUTERS/Dane Rhys

A view inside the PES Refinery in Philadelphia, Pennsylvania, U.S., November 2, 2020. Picture taken November 2, 2020. REUTERS/Dane Rhys

A view of the PES Refinery in Philadelphia, Pennsylvania, U.S., November 2, 2020. Picture taken November 2, 2020. REUTERS/Dane Rhys

A view of the Sunoco Baseball Field that will be torn up as part of Phase one re-construction at the PES Refinery in Philadelphia, Pennsylvania, U.S., November 1, 2020. Picture taken November 1, 2020. REUTERS/Dane Rhys

A tanker on the Schuylkill River is seen with refinery storage tanks in the background at the mouth of Mingo Creek in Philadelphia, Pennsylvania, U.S., October 31, 2020. Picture taken October 31, 2020. REUTERS/Dane Rhys

A view of the PES Refinery on the banks of the Schuylkill River in Philadelphia, Pennsylvania, U.S., October 31, 2020. Picture taken October 31, 2020. REUTERS/Dane Rhys

The old communications room is seen inside the PES Refinery in Philadelphia, Pennsylvania, U.S., November 2, 2020. Picture taken November 2, 2020. REUTERS/Dane Rhys