A child holds a piece of bread in her hand outside the new temporary camp for migrants and refugees, on the island of Lesbos, Greece, September 23, 2020. REUTERS/Yara Nardi

A man is seen through a barbed wire at a new temporary camp for migrants and refugees, on the island of Lesbos, Greece, September 22, 2020. REUTERS/Yara Nardi

A general view of a new temporary camp for migrants and refugees on the island of Lesbos, Greece, September 22, 2020. REUTERS/Yara Nardi

A woman looks over the barbed wire of a chain-linked fence at a new temporary camp for migrants and refugees, on the island of Lesbos, Greece, September 21, 2020. REUTERS/Yara Nardi

A view of a makeshift camp for refugees and migrants next to the Moria camp, on the island of Lesbos, Greece, March 11, 2020. REUTERS/Elias Marcou

Dinara Saduakassova, a 23-year-old Kazakh chess player and social activist, poses for a picture in the Chess Academy she founded in Nur-Sultan, Kazakhstan March 3, 2020. Saduakassova has opened a chain of chess schools in the country and has become a Goodwill Ambassador of the UNICEF. Picture taken March 3, 2020. REUTERS/Pavel Mikheyev

Dinara Saduakassova, a 23-year-old Kazakh chess player and social activist, teaches children in the Chess Academy she founded in Nur-Sultan, Kazakhstan March 3, 2020. Saduakassova has opened a chain of chess schools in the country and has become a Goodwill Ambassador of the UNICEF. Picture taken March 3, 2020. REUTERS/Pavel Mikheyev

Dinara Saduakassova, a 23-year-old Kazakh chess player and social activist, teaches children in the Chess Academy she founded in Nur-Sultan, Kazakhstan March 3, 2020. Saduakassova has opened a chain of chess schools in the country and has become a Goodwill Ambassador of the UNICEF. Picture taken March 3, 2020. REUTERS/Pavel Mikheyev

Dinara Saduakassova, a 23-year-old Kazakh chess player and social activist, teaches children in the Chess Academy she founded in Nur-Sultan, Kazakhstan March 3, 2020. Saduakassova has opened a chain of chess schools in the country and has become a Goodwill Ambassador of the UNICEF. Picture taken March 3, 2020. REUTERS/Pavel Mikheyev

Dinara Saduakassova, a 23-year-old Kazakh chess player and social activist, poses for a picture in the Chess Academy she founded in Nur-Sultan, Kazakhstan March 3, 2020. Saduakassova has opened a chain of chess schools in the country and has become a Goodwill Ambassador of the UNICEF. Picture taken March 3, 2020. REUTERS/Pavel Mikheyev

Trout lies on a frozen river in Hwacheon, south of the demilitarized zone (DMZ) separating the two Koreas, South Korea, February 8, 2020. REUTERS/Heo Ran

People walk along Orne Harbour, Antarctica, February 6, 2020. Picture taken February 6, 2020. Reuters/Ueslei Marcelino

People walk along Orne Harbour, Antarctica, February 6, 2020. Picture taken February 6, 2020. Reuters/Ueslei Marcelino

A man runs in the early morning light at Richmond Park in London, Britain, February 7, 2020. REUTERS/Toby Melville

A view of temporary camp for refugees and migrants next to the Moria camp during heavy rainfall on the island of Lesbos, Greece, February 6, 2020. REUTERS/Elias Marcou

A child wearing a face mask plays at the Beihai Park, as the country is hit by an outbreak of the new coronavirus, in Beijing, China January 31, 2020. REUTERS/Tingshu Wang

A man fishes near Jiujiang Yangtze River Bridge that crosses from Hubei province into Jiujiang, Jiangxi province, China, as the country is hit by an outbreak of a new coronavirus, January 31, 2020. REUTERS/Thomas Peter

Cocoa plants are placed in a shed at an orange farm in Bejuma, Venezuela January 23, 2020. Picture taken January 23, 2020. REUTERS/Manaure Quintero

The sun sets behind the Church of Saint Paul in Rabat, as seen from San Gwann, Malta January 28, 2020. REUTERS/Darrin Zammit Lupi

The Dome of the Rock on the compound known to Jews as Temple Mount and to Palestinians as Noble Sanctuary in Jerusalem's Old City is seen in this general view of Jerusalem January 28, 2020. REUTERS/Ronen Zvulun

The Dome of the Rock on the compound known to Jews as Temple Mount and to Palestinians as Noble Sanctuary in Jerusalem's Old City is seen in this general view of Jerusalem January 28, 2020. REUTERS/Ronen Zvulun

A God of Fortune statue is seen against the backdrop of Singapore Flyer ahead of Chinese New Year in Singapore January 23, 2020. REUTERS/Feline Lim

A dog wearing a cone waits for his owner at a dog parking outside a supermarket in Gdynia, Poland January 22, 2020. REUTERS/Radu Sigheti

An EU supporter looks towards the Big Ben clocktower as she demonstrates outside the Houses of Parliament in London, Britain, January 22, 2020. REUTERS/Toby Melville

People stroll around the historical city walls at Saraykapi district in the southeastern city of Diyarbakir, Turkey, January 22, 2020. REUTERS/Sertac Kayar

People stroll around the historical city walls at Saraykapi district in the southeastern city of Diyarbakir, Turkey, January 22, 2020. REUTERS/Sertac Kayar

An SGR passenger train passes by elephants as it travels from Mombasa to Nairobi near Tsavo East National Park in Tsavo, Kenya, October 24, 2019. REUTERS/Baz Ratner SEARCH "MOMBASA-NAIROBI TRAIN" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

A view of a camp for refugees and migrants next to the Moria camp, on the island of Lesbos, Greece, January 22, 2020. REUTERS/Elias Marcou

A migrant hangs clothes to dry at a camp for refugees and migrants next to the Moria camp, on the island of Lesbos, Greece, January 22, 2020. REUTERS/Elias Marcou

A dog walks at a burnt-out tent of his owner's family after a fire broke out in a slum in Karachi, Pakistan January 22, 2020. REUTERS/Akhtar Soomro

A woman is pictured during the storm "Gloria" on Maresme coast in Badalona, near Barcelona, Spain, January 21, 2020. REUTERS/Nacho Doce TPX IMAGES OF THE DAY

A pademelon hops across a road on Kangaroo Island, Australia January 19, 2020. REUTERS/Tracey Nearmy

A wallaby is seen on in burnt bushland on Kangaroo Island, Australia January 19, 2020. REUTERS/Tracey Nearmy

People walk along Millennium Bridge during sunny weather in London, Britain, January 19, 2020. REUTERS/Henry Nicholls

Tourists look at the Perito Moreno glacier, near the city of El Calafate in the Patagonian province of Santa Cruz, Argentina January 14, 2020. Picture taken January 14, 2020. REUTERS/Agustin Marcarian

Climbers trek on the Perito Moreno glacier, near the city of El Calafate in the Patagonian province of Santa Cruz, Argentina January 14, 2020. Picture taken January 14, 2020. REUTERS/Agustin Marcarian

Magellanic penguins are seen at the Martillo Island, in the Patagonian province of Tierra del Fuego, Argentina, January 7, 2020. Picture taken January 7, 2020. REUTERS/Agustin Marcarian

Tourists look at the Perito Moreno glacier, near the city of El Calafate in the Patagonian province of Santa Cruz, Argentina January 14, 2020. Picture taken January 14, 2020. REUTERS/Agustin Marcarian

Iranian chess referee Shohreh Bayat looks on during the Women's World Chess Championship in Vladivostok, Russia January 16, 2020. REUTERS/Yuri Maltsev

Iranian chess referee Shohreh Bayat looks on during the Women's World Chess Championship in Vladivostok, Russia January 16, 2020. REUTERS/Yuri Maltsev

Iranian chess referee Shohreh Bayat looks on during the Women's World Chess Championship in Vladivostok, Russia January 16, 2020. REUTERS/Yuri Maltsev TPX IMAGES OF THE DAY

Iranian chess referee Shohreh Bayat looks on during the Women's World Chess Championship in Vladivostok, Russia January 16, 2020. REUTERS/Yuri Maltsev

Iranian chess referee Shohreh Bayat looks on during the Women's World Chess Championship in Vladivostok, Russia January 16, 2020. REUTERS/Yuri Maltsev

A campfire burns on the bank of the River Tay on the opening day of the salmon fishing season near Meikleour, Scotland, Britain January 15, 2020. REUTERS/Russell Cheyne

A woman looks towards Gdynia from the pier in Sopot, Poland, January 12, 2020. REUTERS/Kevin Coombs

Dogs play on a sports ground on a snowy day in Moscow, Russia January 11, 2020. REUTERS/Maxim Shemetov

A chameleon is seen on washed-up river cane on a beach along the shore of the Mediterranean Sea as heavy rainfalls hit Israel, in Ashdod, Israel January 9, 2020. REUTERS/Amir Cohen TPX IMAGES OF THE DAY

A dead antelope is seen in the veld near Groblershoop, South Africa, December 6, 2019. Picture taken December 6, 2019. REUTERS/Shafiek Tassiem

A dead antelope is seen in the veld near Groblershoop, South Africa, December 6, 2019. Picture taken December 6, 2019. REUTERS/Shafiek Tassiem

People walk past ice-covered trees near Albispass mountain pass, Switzerland January 2, 2020. REUTERS/Arnd Wiegmann

Russia's Ian Nepomniachtchi, 29 and China's Wei Yi play a game of chess in the final round of the Grand Prix Series tournament in Jerusalem December 22, 2019. REUTERS/Amir Cohen

A view of a makeshift camp next to the Moria camp for refugees and migrants, during a rainfall on the island of Lesbos, Greece, December 13, 2019. REUTERS/Giorgos Moutafis

A migrant holding a child walks under heavy rainfall at a makeshift camp for refugees and migrants next to the Moria camp, on the island of Lesbos, Greece, December 13, 2019. REUTERS/Giorgos Moutafis

Clouds gather but produce no rain as cracks are seen in the dried up municipal dam in drought-stricken Graaff-Reinet, South Africa, November 14, 2019. Picture taken November 14, 2019. REUTERS/Mike Hutchings

A woman feeds a Parakeet in Hyde Park during autumnal weather in London, Britain, November 23, 2019. REUTERS/Henry Nicholls

A migrant wearing a raincoat makes his way at a makeshift camp for refugees and migrants next to the Moria camp following rainfall, on the island of Lesbos, Greece, November 22, 2019. REUTERS/Elias Marcou

Motorist drive past an emaciated horse with a broken leg in Hawassa, Ethiopia, November 22, 2019. REUTERS/Tiksa Negeri

A fisherman digs for bait in front of the Liverpool skyline on the beach at New Brighton, Britain November 19, 2019. REUTERS/Phil Noble

A dog runs in a park in Gaasbeek, Belgium, November 16, 2019. REUTERS/Yves Herman

Tourists walks to the Royal Cemeteries of Meroe Pyramids in Begrawiya at River Nile State, Sudan November 10, 2019. Picture taken November 10, 2019. REUTERS/Mohamed Nureldin Abdallah