Alpine Skiing - FIS Ski World Cup - Men's Downhill - Saalbach-Hinterglemm, Austria - March 5, 2021 General view of slope workers during the Men's Downhill REUTERS/Lisi Niesner

A girl skis at a makeshift ski slope constructed at a school courtyard as ski instructors get creative during ski resort closures due to the coronavirus disease (COVID-19) restrictions, in Milan, Italy February 25, 2021. REUTERS/Daniele Mascolo

A girl skis at a makeshift ski slope constructed at a school courtyard as ski instructors get creative during ski resort closures due to the coronavirus disease (COVID-19) restrictions, in Milan, Italy February 25, 2021. REUTERS/Daniele Mascolo

A boy skis with help of his instructor at a makeshift ski slope constructed at a school courtyard as ski instructors get creative during ski resort closures due to the coronavirus disease (COVID-19) restrictions, in Milan, Italy February 25, 2021. REUTERS/Daniele Mascolo

School children ski following their instructor at a makeshift ski slope constructed at a school courtyard as ski instructors get creative during ski resort closures due to the coronavirus disease (COVID-19) restrictions, in Milan, Italy February 25, 2021. REUTERS/Daniele Mascolo

School children play at a makeshift ski slope constructed at a school courtyard as ski instructors get creative during ski resort closures due to the coronavirus disease (COVID-19) restrictions, in Milan, Italy February 25, 2021. REUTERS/Daniele Mascolo

A boy plays at a makeshift ski slope constructed at a school courtyard as ski instructors get creative during ski resort closures due to the coronavirus disease (COVID-19) restrictions, in Milan, Italy February 25, 2021. REUTERS/Daniele Mascolo

School children ski with help of their instructor at a makeshift ski slope constructed at a school courtyard as ski instructors get creative during ski resort closures due to the coronavirus disease (COVID-19) restrictions, in Milan, Italy February 25, 2021. REUTERS/Daniele Mascolo

A girl wearing skis moves up at a makeshift ski slope constructed at a school courtyard as ski instructors get creative during ski resort closures due to the coronavirus disease (COVID-19) restrictions, in Milan, Italy February 25, 2021. REUTERS/Daniele Mascolo

A girl walks with her instructor at a makeshift ski slope constructed at a school courtyard as ski instructors get creative during ski resort closures due to the coronavirus disease (COVID-19) restrictions, in Milan, Italy February 25, 2021. REUTERS/Daniele Mascolo

A school child wears their skis with help of a instructor at a makeshift ski slope constructed at a school courtyard as ski instructors get creative during ski resort closures due to the coronavirus disease (COVID-19) restrictions, in Milan, Italy February 25, 2021. REUTERS/Daniele Mascolo

A school child wears their skis with help of a instructor at a makeshift ski slope constructed at a school courtyard as ski instructors get creative during ski resort closures due to the coronavirus disease (COVID-19) restrictions, in Milan, Italy February 25, 2021. REUTERS/Daniele Mascolo

A girl carries her skis at a makeshift ski slope constructed at a school courtyard as ski instructors get creative during ski resort closures due to the coronavirus disease (COVID-19) restrictions, in Milan, Italy February 25, 2021. REUTERS/Daniele Mascolo

A girl skis following her instructor at a makeshift ski slope constructed at a school courtyard as ski instructors get creative during ski resort closures due to the coronavirus disease (COVID-19) restrictions, in Milan, Italy February 25, 2021. REUTERS/Daniele Mascolo

School children ski with help of their instructors at a makeshift ski slope constructed at a school courtyard as ski instructors get creative during ski resort closures due to the coronavirus disease (COVID-19) restrictions, in Milan, Italy February 25, 2021. REUTERS/Daniele Mascolo

School children play at a makeshift ski slope constructed at a school courtyard as ski instructors get creative during ski resort closures due to the coronavirus disease (COVID-19) restrictions, in Milan, Italy February 25, 2021. REUTERS/Daniele Mascolo

School children wearing skis hold their hands at a makeshift ski slope constructed at a school courtyard as ski instructors get creative during ski resort closures due to the coronavirus disease (COVID-19) restrictions, in Milan, Italy February 25, 2021. REUTERS/Daniele Mascolo

Alpine Skiing - FIS Alpine World Ski Championships - Cortina d'Ampezzo, Italy - February 17, 2021 An Italian flag is projected next to the illuminated ski slopes. REUTERS/Denis Balibouse

Italian police officers stand on the slope, as the government signed a last-minute order to keep ski resorts closed until March, in Cortina d'Ampezzo, Italy, February 15, 2021. REUTERS/Leonhard Foeger

An Italian police officer skies on the slope, as the government signed a last-minute order to keep ski resorts closed until March, in Cortina d'Ampezzo, Italy, February 15, 2021. REUTERS/Leonhard Foeger

Italian police officers stand on the slope, as the government signed a last-minute order to keep ski resorts closed until March, in Cortina d'Ampezzo, Italy, February 15, 2021. REUTERS/Leonhard Foeger

Italian police officers ski on the slope, as the government signed a last-minute order to keep ski resorts closed until March, in Cortina d'Ampezzo, Italy, February 15, 2021. REUTERS/Leonhard Foeger

Alpine Skiing - FIS Alpine World Ski Championships - Men's Downhill Training - Cortina d'Ampezzo, Italy - February 12, 2021 Slope workers before the start REUTERS/Leonhard Foeger REFILE - CORRECTING ID

Alpine Skiing - FIS Alpine World Ski Championships - Men's Downhill Training - Cortina d'Ampezzo, Italy - February 12, 2021 Slope workers before the start REUTERS/Leonhard Foeger REFILE - CORRECTING ID

Alpine Skiing - FIS Alpine Ski World Championships Women's Super-G - Cortina d'Ampezzo, Italy - February 11, 2021 General view of a ski slope before the event REUTERS/Leonhard Foeger

Alpine Skiing - FIS Alpine Ski World Championships Women's Super-G - Cortina d'Ampezzo, Italy - February 11, 2021 General view of a ski slope before the event REUTERS/Denis Balibouse

Alpine Skiing - FIS Alpine Ski World Championships Women's Super-G - Cortina d'Ampezzo, Italy - February 11, 2021 General view of a ski slope before the event REUTERS/Denis Balibouse

Alpine Skiing - FIS Alpine Ski World Championships - Cortina d'Ampezzo, Italy - February 9, 2021 General view of the slope as todays event is cancelled due to weather conditions REUTERS/Denis Balibouse

Alpine Skiing - FIS Alpine Ski World Championships - Cortina d'Ampezzo, Italy - February 9, 2021 General view of the slope as todays event is cancelled due to weather conditions REUTERS/Denis Balibouse

Alpine Skiing - FIS Alpine Ski World Championships - Cortina d'Ampezzo, Italy - February 9, 2021 Members of staff on the slope as todays event is cancelled due to weather conditions REUTERS/Denis Balibouse

Alpine Skiing - FIS Alpine Ski World Championships - Cortina d'Ampezzo, Italy - February 9, 2021 A member of staff on the slope as todays event is cancelled due to weather conditions REUTERS/Denis Balibouse

Alpine Skiing - FIS Alpine Ski World Championships - Cortina d'Ampezzo, Italy - February 9, 2021 Members of staff on the slope as todays event is cancelled due to weather conditions REUTERS/Denis Balibouse

Alpine Skiing - FIS Alpine Ski World Championships - Cortina d'Ampezzo, Italy - February 9, 2021 A member of staff on the slope as todays event is cancelled due to weather conditions REUTERS/Denis Balibouse

Alpine Skiing - FIS Alpine Ski World Championships - Cortina d'Ampezzo, Italy - February 9, 2021 A member of staff on the slope as todays event is cancelled due to weather conditions REUTERS/Leonhard Foeger

Alpine Skiing - FIS Alpine Ski World Championships - Cortina d'Ampezzo, Italy - February 9, 2021 A member of staff on the slope as todays event is cancelled due to weather conditions REUTERS/Denis Balibouse

Alpine Skiing - FIS Alpine Ski World Championships - Cortina d'Ampezzo, Italy - February 9, 2021 A worker on the slope as fog delays the start REUTERS/Denis Balibouse

Alpine Skiing - FIS Alpine Ski World Championships - Cortina d'Ampezzo, Italy - February 8, 2021 Onlookers on the slope after the schedule for today is cancelled due to weather conditions REUTERS/Leonhard Foeger

Participants ride down a slope during the "Sunnyfest" festival of unusual sledges in the town of Mamadysh in the Republic of Tatarstan, Russia February 6, 2021. Picture taken February 6, 2021. REUTERS/Alexey Nasyrov TPX IMAGES OF THE DAY

Participants ride down a slope during the "Sunnyfest" festival of unusual sledges in the town of Mamadysh in the Republic of Tatarstan, Russia February 6, 2021. Picture taken February 6, 2021. REUTERS/Alexey Nasyrov

Participants ride down a slope during the "Sunnyfest" festival of unusual sledges in the town of Mamadysh in the Republic of Tatarstan, Russia February 6, 2021. Picture taken February 6, 2021. REUTERS/Alexey Nasyrov

Participants ride down a slope during the "Sunnyfest" festival of unusual sledges in the town of Mamadysh in the Republic of Tatarstan, Russia February 6, 2021. Picture taken February 6, 2021. REUTERS/Alexey Nasyrov

Participants ride down a slope during the "Sunnyfest" festival of unusual sledges in the town of Mamadysh in the Republic of Tatarstan, Russia February 6, 2021. Picture taken February 6, 2021. REUTERS/Alexey Nasyrov

Participants ride down a slope during the "Sunnyfest" festival of unusual sledges in the town of Mamadysh in the Republic of Tatarstan, Russia February 6, 2021. Picture taken February 6, 2021. REUTERS/Alexey Nasyrov

A staff member skis down a slope during an organised media tour to the National Alpine Skiing Centre, a venue of the 2022 Winter Olympic Games, in Beijing's Yanqing district, China February 5, 2021. REUTERS/Tingshu Wang

A staff member skis down a slope during an organised media tour to the National Alpine Skiing Centre, a venue of the 2022 Winter Olympic Games, in Beijing's Yanqing district, China February 5, 2021. REUTERS/Tingshu Wang

Staff members stand near a ski slope during an organised media tour to the National Alpine Skiing Centre, a venue of the 2022 Winter Olympic Games, in Beijing's Yanqing district, China February 5, 2021. REUTERS/Tingshu Wang

Journalists stand in front of ski slopes during an organised media tour to the National Alpine Skiing Centre, a venue of the 2022 Winter Olympic Games, in Beijing's Yanqing district, China February 5, 2021. REUTERS/Tingshu Wang

Staff members ski down a slope during an organised media tour to the National Alpine Skiing Centre, a venue of the 2022 Winter Olympic Games, in Beijing's Yanqing district, China February 5, 2021. REUTERS/Tingshu Wang

Journalists stand in front of ski slopes during an organised media tour to the National Alpine Skiing Centre, a venue of the 2022 Winter Olympic Games, in Beijing's Yanqing district, China February 5, 2021. REUTERS/Tingshu Wang

Ski slopes are seen through glass windows during an organised media tour to the National Alpine Skiing Centre, a venue of the 2022 Winter Olympic Games, in Beijing's Yanqing district, China February 5, 2021. REUTERS/Tingshu Wang

A staff member skis down a slope during an organised media tour to the National Alpine Skiing Centre, a venue of the 2022 Winter Olympic Games, in Beijing's Yanqing district, China February 5, 2021. REUTERS/Tingshu Wang

A general view shows ski slopes at the National Alpine Skiing Centre, a venue of the 2022 Winter Olympic Games, during an organised media tour in Beijing's Yanqing district, China February 5, 2021. REUTERS/Tingshu Wang

Staff members ski down a slope during an organised media tour to the National Alpine Skiing Centre, a venue of the 2022 Winter Olympic Games, in Beijing's Yanqing district, China February 5, 2021. REUTERS/Tingshu Wang

Cable cars are seen above a slope during an organised media tour to the National Alpine Skiing Centre, a venue of the 2022 Winter Olympic Games, in Beijing's Yanqing district, China February 5, 2021. REUTERS/Tingshu Wang

Ski slopes of the National Alpine Skiing Center, a venue for the Beijing 2022 Olympic Winter Games, is seen in Yanqing district, Beijing, China, January 28, 2021. Picture taken January 28, 2021. REUTERS/Tingshu Wang

Children learn to ski on a slope at Gulmarg, a ski resort and one of the main tourist attractions in the Kashmir region, January 28, 2021. REUTERS/Sanna Irshad Mattoo

Children learn to ski on a slope at Gulmarg, a ski resort and one of the main tourist attractions in the Kashmir region, January 28, 2021. REUTERS/Sanna Irshad Mattoo

A view of Utqiagvik, formerly known as Barrow, Alaska, U.S. on October 4, 2018, with no sea ice on the horizon and North Slope Borough crews working to protect the shoreline from storm surges. Picture taken October 4, 2018. REUTERS/Yereth Rosen

Alpine Skiing - Men's Downhill Training - Kitzbuehel, Austria - January 20, 2021 Slope workers at the finish line before the start of training REUTERS/Leonhard Foeger

Alpine Skiing - Men's Downhill Training - Kitzbuehel, Austria - January 20, 2021 Slope workers approach the finish line before the start of training REUTERS/Leonhard Foeger