The swollen Sihl river is seen after rainfalls in Adliswil, Switzerland August 19, 2022. REUTERS/Arnd Wiegmann 

The swollen Sihl river is seen after rainfalls in Adliswil, Switzerland August 19, 2022. REUTERS/Arnd Wiegmann 

A woman walks on a flooded street following two days of heavy rains that have swollen rivers and damaged homes, in Cap-Haitien, Haiti, February 2, 2022. REUTERS/Ralph Tedy Erol 

A bulldozer removes debris following two days of heavy rains that have swollen rivers and damaged homes, in Cap-Haitien, Haiti February 2, 2022. REUTERS/Ralph Tedy Erol 

A woman looks on after cleaning her home, also used for prayer meetings, following two days of heavy rains that have swollen rivers and damaged homes, in Cap-Haitien, Haiti, February 2, 2022. REUTERS/Ralph Tedy Erol 

Children clean chairs following two days of heavy rains that have swollen rivers and damaged homes, in Cap-Haitien, Haiti, February 2, 2022. REUTERS/Ralph Tedy Erol 

A child looks on as people clean their homes following two days of heavy rains that have swollen rivers and damaged homes, in Cap-Haitien, Haiti, February 2, 2022. REUTERS/Ralph Tedy Erol 

People clean their homes following two days of heavy rains that have swollen rivers and damaged homes, in Cap-Haitien, Haiti, February 2, 2022. REUTERS/Ralph Tedy Erol 

A goat is seen in a flooded street following two days of heavy rains that have swollen rivers and damaged homes, in Cap-Haitien, Haiti February 1, 2022. REUTERS/Ralph Tedy Erol TPX IMAGES OF THE DAY 

A woman gestures to show how high the level of the water was, while standing in the flooded patio of her home, following two days of heavy rains that have swollen rivers and damaged homes, in Cap-Haitien, Haiti February 1, 2022. REUTERS/Ralph Tedy Erol 

People walk on a flooded street following two days of heavy rains that have swollen rivers and damaged homes, in Cap-Haitien, Haiti February 1, 2022. REUTERS/Ralph Tedy Erol 

A woman walks on a flooded street following two days of heavy rains that have swollen rivers and damaged homes, in Cap-Haitien, Haiti February 1, 2022. REUTERS/Ralph Tedy Erol 

People walk on a flooded street following two days of heavy rains that have swollen rivers and damaged homes, in Cap-Haitien, Haiti February 1, 2022. REUTERS/Ralph Tedy Erol 

People walk on a flooded street following two days of heavy rains that have swollen rivers and damaged homes, in Cap-Haitien, Haiti February 1, 2022. REUTERS/Ralph Tedy Erol 

Children walk through a flooded passage following two days of heavy rains that have swollen rivers and damaged homes, in Cap-Haitien, Haiti February 1, 2022. REUTERS/Ralph Tedy Erol 

People are seen on the roof and balcony of their homes on a flooded street following two days of heavy rains that have swollen rivers and damaged homes, in Cap-Haitien, Haiti February 1, 2022. REUTERS/Ralph Tedy Erol 

A man stands on a flooded street following two days of heavy rains that have swollen rivers and damaged homes, in Cap-Haitien, Haiti February 1, 2022. REUTERS/Ralph Tedy Erol 

Pastor David Shrimpton, 57,known as the "flying padre" and resident Barb Arnold, look at the swollen Darling River, after flying in to her property's isolated airstrip at Bindara Station near Menindee, Australia, December 16, 2021. REUTERS/Loren Elliott SEARCH "ELLIOTT FLYING PASTOR" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

A dead cow lies on the bank of swollen Bishnumati River after the heavy rainfall in Kathmandu, Nepal, September 6, 2021. REUTERS/Navesh Chitrakar TPX IMAGES OF THE DAY 

A dead cow lies on the bank of swollen Bishnumati River after the heavy rainfall in Kathmandu, Nepal, September 6, 2021. REUTERS/Navesh Chitrakar 

JR Bubicki, with the U.S. Geological Survey (USGS), uses a boat with sensors in the Hockanum River, swollen from the rains from Tropical Storm Henri, to measure the flow rate in East Hartford, Connecticut, U.S., August 23, 2021. REUTERS/Brian Snyder 

Dee-Ann McCarthy, with the U.S. Geological Survey (USGS), puts a boat with sensors in the Hockanum River, swollen from the rains from Tropical Storm Henri, to measure the flow rate in East Hartford, Connecticut, U.S., August 23, 2021. REUTERS/Brian Snyder 

JR Bubicki, with the U.S. Geological Survey (USGS), uses a boat with sensors in the Hockanum River, swollen from the rains from Tropical Storm Henri, to measure the flow rate in East Hartford, Connecticut, U.S., August 23, 2021. REUTERS/Brian Snyder 

Tokyo 2020 Olympics - Soccer Football - Men - Group C - Egypt v Spain - Sapporo Dome, Sapporo, Japan - July 22, 2021. The swollen ankle of Dani Ceballos of Spain is seen as he is substituted off after sustaining an injury REUTERS/Kim Hong-Ji 

The swollen Sihl River is seen after torrential rain in Sihlbrugg, Switzerland July 14, 2021. REUTERS/Arnd Wiegmann 

The swollen Reuss River is seen after heavy rainfall, next to the old town of Bremgarten, Switzerland July 9, 2021. Picture taken with a drone. REUTERS/Arnd Wiegmann 

A view shows swollen river waters as hurricane Elsa passes near to Kingstown, Saint Vincent and the Grenadines, July 2, 2021. REUTERS/Robertson S. Henry 

A window of a partially submerged house is seen as flood water from the swollen Melamchi river enters the village in Sindhupalchok, Nepal, June 16, 2021. REUTERS/Navesh Chitrakar 

People stand on the roof of a house as flood water from the swollen Melamchi river enters the village in Sindhupalchok, Nepal June 16, 2021. REUTERS/Navesh Chitrakar 

A Nepali army helicopter hovers above houses during a rescue mission as flood water from the swollen Melamchi river enters the village in Sindhupalchok, Nepal, June 16, 2021. REUTERS/Navesh Chitrakar 

A Nepali army helicopter flies above the swollen Melamchi river during a rescue mission in Sindhupalchok, Nepal, June 16, 2021. REUTERS/Navesh Chitrakar 

Partially submerged houses are seen as flood water from the swollen Melamchi river enters the village in Sindhupalchok, Nepal, June 16, 2021. REUTERS/Navesh Chitrakar 

Partially submerged houses are seen as flood water from the swollen Melamchi river enters the village in Sindhupalchok, Nepal, June 16, 2021. REUTERS/Navesh Chitrakar 

People gather on higher ground as flood water from the swollen Melamchi river enters the village in Sindhupalchok, Nepal, June 16, 2021. REUTERS/Navesh Chitrakar 

People gather on higher ground as flood water from the swollen Melamchi river enters the village in Sindhupalchok, Nepal, June 16, 2021. REUTERS/Navesh Chitrakar 

People sit on a hilltop as they look towards the swollen Melamchi river in Sindhupalchok, Nepal, June 16, 2021. REUTERS/Navesh Chitrakar 

Long COVID sufferer Susana Matarranz, a 44-year-old primary school teacher, poses for a photograph taken through blue plastic, in Madrid, Spain, March 8, 2021. The photograph was taken through blue plastic to visualise the effects of long COVID. Matarranz gets emotional when she explains how much she misses her students. Matarranz got infected on March 1, 2020. At first, she only noticed the loss of smell and taste, but soon afterwards she started suffering from severe stomach problems and acute joint pain. "My right collar bone is swollen, I can barely lift my arm, I feel like I have aged prematurely," she said. Matarranz returned to work in September, but got infected a second time in November and hasn't been able to continue teaching ever since. "The part of me that is my profession is empty, like that blackboard. A piece of my heart, which are my students, whom I love dearly, feels empty and I feel like at this moment there's nothing I can do to fill it in." REUTERS/Susana Vera SEARCH "SPAIN LONGCOVID" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY. 

A blank children's blackboard is photographed through blue plastic at the home of long COVID sufferer Susana Matarranz, a 44-year-old primary school teacher, in Madrid, Spain, March 8, 2021. The photograph was taken through blue plastic to visualise the effects of long COVID. Matarranz gets emotional when she explains how much she misses her students. Matarranz got infected on March 1, 2020. At first, she only noticed the loss of smell and taste, but soon afterwards she started suffering from severe stomach problems and acute joint pain. "My right collar bone is swollen, I can barely lift my arm, I feel like I have aged prematurely," she said. Matarranz returned to work in September, but got infected a second time in November and hasn't been able to continue teaching ever since. "The part of me that is my profession is empty, like that blackboard. A piece of my heart, which are my students, whom I love dearly, feels empty and I feel like at this moment there's nothing I can do to fill it in." REUTERS/Susana Vera SEARCH "SPAIN LONGCOVID" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

A combination picture shows long COVID sufferer Susana Matarranz, a 44-year-old primary school teacher, posing for a photograph taken through blue plastic, and a blank blackboard photographed through blue plastic at Matarranz's home, in Madrid, Spain, March 8, 2021. The photographs were taken through blue plastic to visualise the effects of long COVID. Matarranz gets emotional when she explains how much she misses her students. Matarranz got infected on March 1, 2020. At first, she only noticed the loss of smell and taste, but soon afterwards she started suffering from severe stomach problems and acute joint pain. "My right collar bone is swollen, I can barely lift my arm, I feel like I have aged prematurely," she said. Matarranz returned to work in September, but got infected a second time in November and hasn't been able to continue teaching ever since. "The part of me that is my profession is empty, like that blackboard. A piece of my heart, which are my students, whom I love dearly, feels empty and I feel like at this moment there's nothing I can do to fill it in." REUTERS/Susana Vera SEARCH "SPAIN LONGCOVID" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY. 

A boat navigates the swollen Hawkesbury River northwest of Sydney as flooding resulting from a severe weather event with prolonged rains affects the area in Wisemans Ferry, Australia, March 25, 2021. REUTERS/Loren Elliott 

A boat navigates the swollen Hawkesbury River northwest of Sydney as flooding resulting from a severe weather event with prolonged rains affects the area in Wisemans Ferry, Australia, March 25, 2021. REUTERS/Loren Elliott 

A boat navigates the swollen Hawkesbury River northwest of Sydney as flooding resulting from a severe weather event with prolonged rains affects the area in Wisemans Ferry, Australia, March 25, 2021. REUTERS/Loren Elliott 

A view of the swollen Colo River, as the state of New South Wales experiences widespread flooding following days of severe weather, in northwestern Sydney, Australia, March 24, 2021. Picture taken with a drone. REUTERS/Jill Gralow 

A view of the swollen Colo River, as the state of New South Wales experiences widespread flooding following days of severe weather, in northwestern Sydney, Australia, March 24, 2021. Picture taken with a drone. REUTERS/Jill Gralow 

People look out at the swollen Hawkesbury River from the deck of a partially submerged house as floodwaters rise in western Sydney, Australia, March 23, 2021. REUTERS/Loren Elliott/Pool 

The Australian national flag pokes out of the swollen Hawkesbury River as the state of New South Wales experiences severe flooding, in the suburb of Sackville North in Sydney, Australia, March 23, 2021. REUTERS/Loren Elliott 

A man wades through floodwaters on a residential street near the swollen Nepean River as the state of New South Wales experiences widespread flooding and severe weather, in Sydney, Australia, March 21, 2021. REUTERS/Loren Elliott 

A person wades through floodwaters near the swollen Nepean River as the state of New South Wales experiences widespread flooding and severe weather, in Sydney, Australia, March 21, 2021. REUTERS/Loren Elliott 

A person crosses a bridge over the swollen Nepean River as the state of New South Wales experiences widespread flooding and severe weather, in Sydney, Australia, March 21, 2021. REUTERS/Loren Elliott 

A person wades through floodwaters near the swollen Nepean River as the state of New South Wales experiences widespread flooding and severe weather, in Sydney, Australia, March 21, 2021. REUTERS/Loren Elliott 

A man smokes a cigarette next to the swollen Nepean River as the state of New South Wales experiences widespread flooding and severe weather, in Sydney, Australia, March 21, 2021. REUTERS/Loren Elliott 

A man wades through floodwaters on a residential street near the swollen Nepean River as the state of New South Wales experiences widespread flooding and severe weather, in Sydney, Australia, March 21, 2021. REUTERS/Loren Elliott 

A child wades through floodwaters on a residential street near the swollen Nepean River as the state of New South Wales experiences widespread flooding and severe weather, in Sydney, Australia, March 21, 2021. REUTERS/Loren Elliott 

People gather on a flooded residential street near the swollen Nepean River as the state of New South Wales experiences widespread flooding and severe weather, in Sydney, Australia, March 21, 2021. REUTERS/Loren Elliott TPX IMAGES OF THE DAY 

A man wades through floodwaters on a residential street near the swollen Nepean River as the state of New South Wales experiences widespread flooding and severe weather, in Sydney, Australia, March 21, 2021. REUTERS/Loren Elliott 

People gather on a flooded path near the swollen Nepean River as the state of New South Wales experiences widespread flooding and severe weather, in Sydney, Australia, March 21, 2021. REUTERS/Loren Elliott 

Houses are seen along the swollen Nepean River as the state of New South Wales experiences widespread flooding and severe weather, in Sydney, Australia, March 21, 2021. REUTERS/Loren Elliott 

A sign is partially submerged on a residential path near the swollen Nepean River as the state of New South Wales experiences widespread flooding and severe weather, in Sydney, Australia, March 21, 2021. REUTERS/Loren Elliott 

People walk past floodwaters near the swollen Nepean River as the state of New South Wales experiences widespread flooding and severe weather, in Sydney, Australia, March 21, 2021. REUTERS/Loren Elliott