Tear gas floats in the air as pro-Palestinian protesters clash with police officers during a demonstration outside the Israeli embassy, following a flare-up of Israeli-Palestinian violence, in Athens, Greece, May 15, 2021. REUTERS/Alkis Konstantinidis TPX IMAGES OF THE DAY

A graduation sticker floats away in the rain during a graduation ceremony inside Ohio Stadium at Ohio State University (OSU) in Columbus, Ohio, U.S., May 9, 2021. REUTERS/Gaelen Morse

Fruit sellers wait for customers at Cai Rang floating market on Mekong river, in Can Tho, Vietnam, May 5, 2021. REUTERS/Thanh Hue

A fruit seller loads his boat as he waits for customers at Cai Rang floating market on Mekong river, in Can Tho, Vietnam, May 5, 2021. REUTERS/Thanh Hue

A man sits on his boat at Cai Rang floating market on Mekong river, in Can Tho, Vietnam, May 5, 2021. REUTERS/Thanh Hue

Fruit sellers ride on their boat as they wait for customers at Cai Rang floating market on Mekong river, in Can Tho, Vietnam, May 5, 2021. REUTERS/Thanh Hue

People sit on their boats as they wait for customers at Cai Rang floating market on Mekong river, in Can Tho, Vietnam, May 5, 2021. REUTERS/Thanh Hue TPX IMAGES OF THE DAY

A man sells food at Cai Rang floating market on Mekong river, in Can Tho, Vietnam, May 5, 2021. REUTERS/Thanh Hue

A food seller sails her boat as she waits for customers at Cai Rang floating market on Mekong river, in Can Tho, Vietnam, May 5, 2021. REUTERS/Thanh Hue

Dead fish are seen floating in Lake Qaraoun on the Litani River, Lebanon April 29, 2021. Picture taken April 29, 2021. REUTERS/Mohamed Azakir

Dead fish are seen floating in Lake Qaraoun on the Litani River, Lebanon April 29, 2021. Picture taken April 29, 2021. REUTERS/Mohamed Azakir

A Lebanese flag flutters as dead fish are seen floating in Lake Qaraoun on the Litani River, Lebanon April 29, 2021. Picture taken April 29, 2021. REUTERS/Mohamed Azakir

Dead fish are seen floating in Lake Qaraoun on the Litani River, Lebanon April 29, 2021. Picture taken April 29, 2021. REUTERS/Mohamed Azakir

Dead fish are seen floating in Lake Qaraoun on the Litani River, Lebanon April 29, 2021. Picture taken April 29, 2021. REUTERS/Mohamed Azakir

Dead fish are seen floating in Lake Qaraoun on the Litani River, Lebanon April 29, 2021. Picture taken April 29, 2021 REUTERS/Aziz Taher

Dead fish are seen floating in Lake Qaraoun on the Litani River, Lebanon April 29, 2021. Picture taken April 29, 2021 REUTERS/Aziz Taher

Vessels float on Moskva river past the Christ The Saviour cathedral in Moscow, Russia April 26, 2021. REUTERS/Maxim Shemetov

Vessels float on Moskva river past the Kremlin in Moscow, Russia April 26, 2021. REUTERS/Maxim Shemetov

A woman floats in the water during hot weather at Sandycove in Dublin, Ireland, April 22, 2021. REUTERS/Clodagh Kilcoyne

A woman enjoys the hot weather floating in the water at Sandycove in Dublin, Ireland, April 22, 2021. REUTERS/Clodagh Kilcoyne

A man wades through flood water with his wheel barrow, after rainfall with some objects seen floating in the flood water in Lagos, Nigeria April 17, 2021. Picture taken April 17, 2021. REUTERS/Seun Sanni

The top of a robotic near-shore ocean float is seen floating in a test tank at the Monterey Bay Aquarium Research Institute in Moss Landing, California, U.S., March 9, 2021. Picture taken March 9, 2021. REUTERS/Nathan Frandino

Ken Johnson, project director of the Global Ocean Biogeochemistry Array, points to the sensors atop a robotic ocean float in a laboratory at the Monterey Bay Aquarium Research Institute in Moss Landing, California, U.S. March 9, 2021. Picture taken March 9, 2021. REUTERS/Nathan Frandino

Ken Johnson, project director of the Global Ocean Biogeochemistry Array, stands next to a robotic ocean float in a laboratory at the Monterey Bay Aquarium Research Institute in Moss Landing, California, U.S. on March 9, 2021. Picture taken March 9, 2021. REUTERS/Nathan Frandino

A robotic near-shore ocean float sits on a cart next to a test tank at the Monterey Bay Aquarium Research Institute in Moss Landing, California, U.S. March 9, 2021. Picture taken March 9, 2021. REUTERS/Nathan Frandino

Citizen scientist Sarah Cook (R) examines a floating sample for microplastics in Kiama, Australia, March 30, 2021. Picture taken March 30, 2021. REUTERS/James Redmayne

Microplastics and organic matter float in water inside a container at Manly Cove Beach in Sydney, Australia, April 17, 2021. Picture taken April 17, 2021. REUTERS/James Redmayne

Haenyeo, also known as "sea women", Jin So-hee, 28, and Kim Myung-soon, float in the water as they work in the sea off Geoje, South Korea, March 31, 2021. The disappearance of the seaweed, which the haenyeo harvest as food and which also provides habitat for other creatures they hunt, has forced the women to routinely dive to increasing depths, at least 12 metres, Jin said. "There is less for us to collect and we have to dive deeper, which is physically challenging," Jin said. Besides climate change, the women say they also have to deal with more pollution in the seas, complicating their already dangerous jobs. "I'm finding more golf balls than sea cucumbers now," Jin said. REUTERS/Kim Hong-Ji SEARCH "HAENYEO HONG-JI" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Discarded plastic waste floats in the sea off Geoje, South Korea, March 30, 2021. REUTERS/Kim Hong-Ji SEARCH "HAENYEO HONG-JI" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

A wreath casted into the Moray Firth by pupils and staff of Gordonstoun School floats on the day of the funeral of Britain's Prince Philip, husband of Queen Elizabeth, who died at the age of 99, at Hopeman Harbour, Elgin, Scotland, Britain, April 17, 2021. REUTERS/Russell Cheyne

A wreath casted into the Moray Firth by pupils and staff of Gordonstoun School floats on the day of the funeral of Britain's Prince Philip, husband of Queen Elizabeth, who died at the age of 99, at Hopeman Harbour, Elgin, Scotland, Britain, April 17, 2021. REUTERS/Russell Cheyne

A wreath casted into the Moray Firth by pupils and staff of Gordonstoun School floats on the day of the funeral of Britain's Prince Philip, husband of Queen Elizabeth, who died at the age of 99, at Hopeman Harbour, Elgin, Scotland, Britain, April 17, 2021. REUTERS/Russell Cheyne

A wreath casted into the Moray Firth by pupils and staff of Gordonstoun School floats on the day of the funeral of Britain's Prince Philip, husband of Queen Elizabeth, who died at the age of 99, at Hopeman Harbour, Elgin, Scotland, Britain, April 17, 2021. REUTERS/Russell Cheyne

Lecturer in ecology at the University of Exeter, Dr. Kirsten Thompson measures seagrass gathered floating at the surface at the Saya de Malha Bank within the Mascarene plateau, Mauritius March 10, 2021. Picture taken March 10, 2021. REUTERS/Christophe Van Der Perre

Lecturer in ecology at the University of Exeter, Dr. Kirsten Thompson manipulate seagrass gathered floating at the surface at the Saya de Malha Bank within the Mascarene plateau, Mauritius March 10, 2021. Picture taken March 10, 2021. REUTERS/Christophe Van Der Perre

A giant inflatable cake is floated on the canal on the 20th anniversary of the world's first legally-recognised same-sex wedding, in Amsterdam, Netherlands, April 1, 2021. REUTERS/Eva Plevier

Amsterdam Mayor Femke Halsema is seen in front a giant inflatable cake as it is floated on a canal to celebrate the 20th anniversary of the world's first legally-recognised same-sex wedding, in Amsterdam, Netherlands, April 1, 2021. REUTERS/Eva Plevier

A giant inflatable cake as it is floated on a canal to celebrate the 20th anniversary of the world's first legally-recognised same-sex wedding, in Amsterdam, Netherlands, April 1, 2021. REUTERS/Eva Plevier

An Easter balloon floats in the room of Yoshia Uomoto as family members arrive after indoor visitation restrictions due to coronavirus disease (COVID-19) were lifted at Nikkei Manor, an assisted living facility primarily serving Japanese-American seniors, in Seattle, Washington, U.S. March 30, 2021. Residents, who have all been fully vaccinated, can visit with family for an hour at a time. REUTERS/Lindsey Wasson

Ship Ever Given, one of the world's largest container ships, is seen after it was fully floated in Suez Canal, Egypt March 29, 2021. REUTERS/Mohamed Abd El Ghany

Ship Ever Given, one of the world's largest container ships, is seen after it was fully floated in Suez Canal, Egypt March 29, 2021. REUTERS/Hayam Adel

Ship Ever Given, one of the world's largest container ships, is seen after it was fully floated in Suez Canal, Egypt March 29, 2021. REUTERS/Hayam Adel

Ship Ever Given, one of the world's largest container ships, is seen after it was fully floated in Suez Canal, Egypt March 29, 2021. REUTERS/Mohamed Abd El Ghany

Ship Ever Given, one of the world's largest container ships, is seen after it was fully floated in Suez Canal, Egypt March 29, 2021. REUTERS/Mohamed Abd El Ghany

Ship Ever Given, one of the world's largest container ships, is seen after it was fully floated in Suez Canal, Egypt March 29, 2021. REUTERS/Mohamed Abd El Ghany

Ship Ever Given, one of the world's largest container ships, is seen after it was fully floated in Suez Canal, Egypt March 29, 2021. REUTERS/Mohamed Abd El Ghany

Ship Ever Given, one of the world's largest container ships, is seen after it was fully floated in Suez Canal, Egypt March 29, 2021. REUTERS/Mohamed Abd El Ghany

Ship Ever Given, one of the world's largest container ships, is seen after it was fully floated in Suez Canal, Egypt March 29, 2021. REUTERS/Mohamed Abd El Ghany

Ship Ever Given, one of the world's largest container ships, is seen after it was fully floated in Suez Canal, Egypt March 29, 2021. REUTERS/Mohamed Abd El Ghany

Ship Ever Given, one of the world's largest container ships, is seen after it was fully floated in Suez Canal, Egypt March 29, 2021. REUTERS/Mohamed Abd El Ghany

Ship Ever Given, one of the world's largest container ships, is seen after it was fully floated in Suez Canal, Egypt March 29, 2021. REUTERS/Mohamed Abd El Ghany

Ship Ever Given, one of the world's largest container ships, is seen after it was fully floated in Suez Canal, Egypt March 29, 2021. REUTERS/Mohamed Abd El Ghany

Ship Ever Given, one of the world's largest container ships, is seen after it was fully floated in Suez Canal, Egypt March 29, 2021. REUTERS/Mohamed Abd El Ghany

Ship Ever Given, one of the world's largest container ships, is seen after it was fully floated in Suez Canal, Egypt March 29, 2021. REUTERS/Mohamed Abd El Ghany

A view shows the partially re-floated container ship Ever Given, one of the world's largest container ships, in Suez Canal, Egypt March 29, 2021. REUTERS/Mohamed Abd El Ghany REFILE - ADDITIONAL CAPTION INFORMATION

A view shows the partially re-floated container ship Ever Given, one of the world's largest container ships, in Suez Canal, Egypt March 29, 2021. REUTERS/Mohamed Abd El Ghany REFILE - ADDITIONAL CAPTION INFORMATION

A view shows the partially re-floated container ship Ever Given, one of the world's largest container ships, in Suez Canal, Egypt March 29, 2021. REUTERS/Mohamed Abd El Ghany REFILE - ADDITIONAL CAPTION INFORMATION

A view shows the partially re-floated container ship Ever Given, one of the world's largest container ships, in Suez Canal, Egypt March 29, 2021. REUTERS/Mohamed Abd El Ghany REFILE - ADDITIONAL CAPTION INFORMATION

A view shows the partially re-floated container ship Ever Given, one of the world's largest container ships, in Suez Canal, Egypt March 29, 2021. REUTERS/Mohamed Abd El Ghany REFILE - ADDITIONAL CAPTION INFORMATION