A man runs through a park with his dogs during a snowstorm in Denver, Colorado, U.S., March 14, 2021. REUTERS/Kevin Mohatt TPX IMAGES OF THE DAY

Jay Farrell gathers water from his hot tub so that he can flush his family’s toilet as people across the city find themselves without running water after pipes ruptured due to freezing temperatures following an unprecedented winter storm in Houston, Texas, U.S., February 19, 2021. REUTERS/Callaghan O'Hare

Jay Farrell uses water from his hot tub to flush his toilet as people across the city find themselves without running water after pipes ruptured due to freezing temperatures following an unprecedented winter storm in Houston, Texas, U.S., February 19, 2021. REUTERS/Callaghan O'Hare TPX IMAGES OF THE DAY

Heidi Wuertz uses a bucket of water to flush her family’s toilet as people across the city find themselves without running water after pipes ruptured due to freezing temperatures following an unprecedented winter storm in Houston, Texas, U.S., February 19, 2021. REUTERS/Callaghan O'Hare

Heidi Wuertz carries a bucket of water to her house so that she can flush her family’s toilet as people across the city find themselves without running water after pipes ruptured due to freezing temperatures following an unprecedented winter storm in Houston, Texas, U.S., February 19, 2021. REUTERS/Callaghan O'Hare

Johnathan Martin holds his son, Jack, while offering showers to his neighbours who no longer have running water after pipes across the city ruptured due to freezing temperatures following an unprecedented winter storm in Houston, Texas, U.S., February 19, 2021. REUTERS/Callaghan O'Hare

Tino Martinez, a plumber, inspects the pipes at Heidi Wuertz’s home as Texas residents face mounting challenges after pipes across the city ruptured due to freezing temperatures following an unprecedented winter storm in Houston, Texas, U.S., February 19, 2021. REUTERS/Callaghan O'Hare

Tino Martinez, a plumber, inspects the pipes at Heidi Wuertz’s home as Texas residents face mounting challenges after pipes across the city ruptured due to freezing temperatures following an unprecedented winter storm in Houston, Texas, U.S., February 19, 2021. REUTERS/Callaghan O'Hare

Homeowner Heidi Wuertz and Tino Martinez, a plumber, prepare to inspect a leaking pipe as Texas residents face mounting challenges after pipes across the city ruptured due to freezing temperatures following an unprecedented winter storm in Houston, Texas, U.S., February 19, 2021. REUTERS/Callaghan O'Hare

Homeowner Heidi Wuertz and Tino Martinez, a plumber, turn on the water main in order to inspect a leaking pipe as Texas residents face mounting challenges after pipes across the city ruptured due to freezing temperatures following an unprecedented winter storm in Houston, Texas, U.S., February 19, 2021. REUTERS/Callaghan O'Hare

Homeowner Heidi Wuertz and Tino Martinez, a plumber, discuss a leaking pipe as Texas residents face mounting challenges after pipes across the city ruptured due to freezing temperatures following an unprecedented winter storm in Houston, Texas, U.S., February 19, 2021. REUTERS/Callaghan O'Hare

Homeowner Heidi Wuertz and Tino Martinez, a plumber, discuss a leaking pipe as Texas residents face mounting challenges after pipes across the city ruptured due to freezing temperatures following an unprecedented winter storm in Houston, Texas, U.S., February 19, 2021. REUTERS/Callaghan O'Hare

Tyler Riese, a plumber, fixes a pipe, which burst after freezing, following an unprecedented winter storm in Houston, Texas, U.S., February 19, 2021. REUTERS/Callaghan O'Hare

Tyler Riese, a plumber, reaches underneath a house to investigate a pipe, which burst after freezing, following an unprecedented winter storm in Houston, Texas, U.S., February 19, 2021. REUTERS/Callaghan O'Hare

Tyler Riese, a plumber, fixes a pipe, which burst after freezing, following an unprecedented winter storm in Houston, Texas, U.S., February 19, 2021. REUTERS/Callaghan O'Hare

Swans are seen in a water reservoir of the Khmelnytskyi Nuclear Power Plant (KhNPP) near the town of Ostroh, Ukraine February 16, 2021. The reservoir, which turned into a local tourist spot, attracts dozens of swans every winter as it never freezes over due to the warm waters discharged from the plant. Picture taken February 16, 2021. REUTERS/Valentyn Ogirenko

Swans and wild ducks are seen near the bank of a water reservoir of the Khmelnytskyi Nuclear Power Plant (KhNPP) outside the town of Ostroh, Ukraine February 17, 2021. The reservoir, which turned into a local tourist spot, attracts dozens of swans every winter as it never freezes over due to the warm waters discharged from the plant. Picture taken February 17, 2021. REUTERS/Valentyn Ogirenko

Birds, including swans, swim near the bank of a water reservoir of the Khmelnytskyi Nuclear Power Plant (KhNPP) outside the town of Ostroh, Ukraine February 17, 2021. The reservoir, which turned into a local tourist spot, attracts dozens of swans every winter as it never freezes over due to the warm waters discharged from the plant. Picture taken February 17, 2021. REUTERS/Valentyn Ogirenko

A swan is seen on ice near the bank of a water reservoir of the Khmelnytskyi Nuclear Power Plant (KhNPP) outside the town of Ostroh, Ukraine February 17, 2021. The reservoir, which turned into a local tourist spot, attracts dozens of swans every winter as it never freezes over due to the warm waters discharged from the plant. Picture taken February 17, 2021. REUTERS/Valentyn Ogirenko

A local resident feeds swans on the bank of a water reservoir of the Khmelnytskyi Nuclear Power Plant (KhNPP) near the town of Ostroh, Ukraine February 16, 2021. The reservoir, which turned into a local tourist spot, attracts dozens of swans every winter as it never freezes over due to the warm waters discharged from the plant. Picture taken February 16, 2021. REUTERS/Valentyn Ogirenko

People feed swans on the bank of a water reservoir of the Khmelnytskyi Nuclear Power Plant (KhNPP) near the town of Ostroh, Ukraine February 16, 2021. The reservoir, which turned into a local tourist spot, attracts dozens of swans every winter as it never freezes over due to the warm waters discharged from the plant. Picture taken with a drone February 16, 2021. REUTERS/Valentyn Ogirenko TPX IMAGES OF THE DAY

Swans stand on ice near the bank of a water reservoir of the Khmelnytskyi Nuclear Power Plant (KhNPP) outside the town of Ostroh, Ukraine February 17, 2021. The reservoir, which turned into a local tourist spot, attracts dozens of swans every winter as it never freezes over due to the warm waters discharged from the plant. Picture taken with a drone February 17, 2021. REUTERS/Valentyn Ogirenko

Birds, including swans, swim in a water reservoir of the Khmelnytskyi Nuclear Power Plant (KhNPP) near the town of Ostroh, Ukraine February 16, 2021. The reservoir, which turned into a local tourist spot, attracts dozens of swans every winter as it never freezes over due to the warm waters discharged from the plant. Picture taken February 16, 2021. REUTERS/Valentyn Ogirenko

A swan lands on ice near the bank a water reservoir of the Khmelnytskyi Nuclear Power Plant (KhNPP) outside the town of Ostroh, Ukraine February 17, 2021. The reservoir, which turned into a local tourist spot, attracts dozens of swans every winter as it never freezes over due to the warm waters discharged from the plant. Picture taken February 17, 2021. REUTERS/Valentyn Ogirenko

Birds, including swans, swim in a water reservoir of the Khmelnytskyi Nuclear Power Plant (KhNPP) near the town of Ostroh, Ukraine February 16, 2021. The reservoir, which turned into a local tourist spot, attracts dozens of swans every winter as it never freezes over due to the warm waters discharged from the plant. Picture taken with a drone February 16, 2021. REUTERS/Valentyn Ogirenko

Birds, including swans, swim in a water reservoir of the Khmelnytskyi Nuclear Power Plant (KhNPP) near the town of Ostroh, Ukraine February 17, 2021. The reservoir, which turned into a local tourist spot, attracts dozens of swans every winter as it never freezes over due to the warm waters discharged from the plant. Picture taken February 17, 2021. REUTERS/Valentyn Ogirenko

A local resident feeds a swan on the bank of a water reservoir of the Khmelnytskyi Nuclear Power Plant (KhNPP) near the town of Ostroh, Ukraine February 17, 2021. The reservoir, which turned into a local tourist spot, attracts dozens of swans every winter as it never freezes over due to the warm waters discharged from the plant. Picture taken with February 17, 2021. REUTERS/Valentyn Ogirenko

A swan swims in a water reservoir of the Khmelnytskyi Nuclear Power Plant (KhNPP) near the town of Ostroh, Ukraine February 16, 2021. The reservoir, which turned into a local tourist spot, attracts dozens of swans every winter as it never freezes over due to the warm waters discharged from the plant. Picture taken February 16, 2021. REUTERS/Valentyn Ogirenko

Swans swim in a water reservoir of the Khmelnytskyi Nuclear Power Plant (KhNPP) near the town of Ostroh, Ukraine February 17, 2021. The reservoir, which turned into a local tourist spot, attracts dozens of swans every winter as it never freezes over due to the warm waters discharged from the plant. Picture taken with a drone February 17, 2021. REUTERS/Valentyn Ogirenko

Swans swim in a water reservoir of the Khmelnytskyi Nuclear Power Plant (KhNPP) near the town of Ostroh, Ukraine February 16, 2021. The reservoir, which turned into a local tourist spot, attracts dozens of swans every winter as it never freezes over due to the warm waters discharged from the plant. Picture taken February 16, 2021. REUTERS/Valentyn Ogirenko

A man climbs an artificial wall of ice in the village of Vir near the town of Bystrice nad Pernstejnem, Czech Republic, February 14, 2021. REUTERS/David W Cerny

A man climbs an artificial wall of ice in the village of Vir near the town of Bystrice nad Pernstejnem, Czech Republic, February 14, 2021. REUTERS/David W Cerny

A man climbs an artificial wall of ice in the village of Vir near the town of Bystrice nad Pernstejnem, Czech Republic, February 14, 2021. REUTERS/David W Cerny

A man climbs an artificial wall of ice in the village of Vir near the town of Bystrice nad Pernstejnem, Czech Republic, February 14, 2021. REUTERS/David W Cerny

A woman climbs an artificial wall of ice in the village of Vir near the town of Bystrice nad Pernstejnem, Czech Republic, February 14, 2021. REUTERS/David W Cerny

People climb an artificial wall of ice in the village of Vir near the town of Bystrice nad Pernstejnem, Czech Republic, February 14, 2021. REUTERS/David W Cerny

A man climbs an artificial wall of ice in the village of Vir near the town of Bystrice nad Pernstejnem, Czech Republic, February 14, 2021. REUTERS/David W Cerny

A woman climbs an artificial wall of ice in the village of Vir near the town of Bystrice nad Pernstejnem, Czech Republic, February 14, 2021. REUTERS/David W Cerny

People climb an artificial wall of ice in the village of Vir near the town of Bystrice nad Pernstejnem, Czech Republic, February 14, 2021. REUTERS/David W Cerny

People climb an artificial wall of ice in the village of Vir near the town of Bystrice nad Pernstejnem, Czech Republic, February 14, 2021. REUTERS/David W Cerny

A man climbs an artificial wall of ice in the village of Vir near the town of Bystrice nad Pernstejnem, Czech Republic, February 14, 2021. REUTERS/David W Cerny

A man climbs an artificial wall of ice in the village of Vir near the town of Bystrice nad Pernstejnem, Czech Republic, February 14, 2021. REUTERS/David W Cerny

A man climbs an artificial wall of ice in the village of Vir near the town of Bystrice nad Pernstejnem, Czech Republic, February 14, 2021. REUTERS/David W Cerny TPX IMAGES OF THE DAY

Smoke from chimneys billows over the rooftops of downtown Prague as freezing temperatures hit the country, Czech Republic, February 14, 2021. REUTERS/David W Cerny

Smoke from chimneys billows over the rooftops of downtown Prague as freezing temperatures hit the country, Czech Republic, February 14, 2021. REUTERS/David W Cerny

Smoke from chimneys billows over the rooftops of downtown Prague as freezing temperatures hit the country, Czech Republic, February 14, 2021. REUTERS/David W Cerny

Smoke from chimneys billows over the rooftops of downtown Prague as freezing temperatures hit the country, Czech Republic, February 14, 2021. REUTERS/David W Cerny

Smoke from chimneys billows over the rooftops of downtown Prague as freezing temperatures hit the country, Czech Republic, February 14, 2021. REUTERS/David W Cerny

Smoke from chimneys billows over the rooftops of downtown Prague as freezing temperatures hit the country, Czech Republic, February 14, 2021. REUTERS/David W Cerny

Smoke from chimneys billows over the rooftops of downtown Prague as freezing temperatures hit the country, Czech Republic, February 14, 2021. REUTERS/David W Cerny

Smoke from chimneys billows over the rooftops of downtown Prague as freezing temperatures hit the country, Czech Republic, February 14, 2021. REUTERS/David W Cerny

Smoke from chimneys billows over the rooftops of downtown Prague as freezing temperatures hit the country, Czech Republic, February 14, 2021. REUTERS/David W Cerny

Smoke from chimneys billows over the rooftops of downtown Prague as freezing temperatures hit the country, Czech Republic, February 14, 2021. REUTERS/David W Cerny TPX IMAGES OF THE DAY

Smoke from chimneys billows over the rooftops of downtown Prague as freezing temperatures hit the country, Czech Republic, February 14, 2021. REUTERS/David W Cerny

A woman braves freezing temperatures while taking a picture of the rising sun above Frankfurt?s skyline, during an extended lockdown as the spread of the coronavirus disease (COVID-19) continues in Koenigstein im Taunus, Germany, February 13, 2021. REUTERS/Kai Pfaffenbach