Cork oak destroyed by the historic Filomena snowstorm is seen in Las Rozas, Spain, February 10, 2021. Picture taken February 10, 2021. REUTERS/Juan Medina

Francisco Molina, head of agroforestry department at Imidra, Madrid's rural, agroforestry and alimentation investigation institute, works next to cork oak destroyed by the historic Filomena snowstorm in Las Rozas, Spain, February 10, 2021. Picture taken February 10, 2021. REUTERS/Juan Medina

Employee of agroforestry department at Imidra, Madrid's rural, agroforestry and alimentation investigation institute, shows a cork oak germination in Alcala de Henares, Spain, February 10, 2021. Picture taken February 10, 2021. REUTERS/Juan Medina

Francisco Molina, head of agroforestry department at Imidra, Madrid's rural, agroforestry and alimentation investigation institute, stands next to cork oak destroyed by the historic Filomena snowstorm in Las Rozas, Spain, February 10, 2021. Picture taken February 10, 2021. REUTERS/Juan Medina

Seedlings of cork oak are seen in the laboratory of agroforestry department at Imidra, Madrid's rural, agroforestry and alimentation investigation institute, in Alcala de Henares, Spain, February 10, 2021. Picture taken February 10, 2021. REUTERS/Juan Medina

Inmaculada Hernandez, researcher of agroforestry department at Imidra, Madrid's rural, agroforestry and alimentation investigation institute, works at laboratory in Alcala de Henares, Spain, February 10, 2021. Picture taken February 10, 2021. REUTERS/Juan Medina

Cork oak destroyed by the historic Filomena snowstorm is seen in Las Rozas, Spain, February 10, 2021. Picture taken February 10, 2021. REUTERS/Juan Medina

Employee of the agroforestry department at Imidra, Madrid's rural, agroforestry and alimentation investigation institute, shows a branch of a cork oak destroyed by the historic Filomena snowstorm in Las Rozas, Spain, February 10, 2021. Picture taken February 10, 2021. REUTERS/Juan Medina

A seedling of cork oak are seen in the laboratory of agroforestry department at Imidra, Madrid's rural, agroforestry and alimentation investigation institute, in Alcala de Henares , Spain, February 10, 2021. Picture taken February 10, 2021. REUTERS/Juan Medina

Mar Ruiz Galea researcher of agroforestry department at Imidra, Madrid's rural, agroforestry and alimentation investigation institute, works at laboratory in Alcala de Henares, Spain, February 10, 2021. Picture taken February 10, 2021. REUTERS/Juan Medina

Employee of agroforestry department at Imidra, Madrid's rural, agroforestry and alimentation investigation institute, shows a cork oak germination in Alcala de Henares, Spain, February 10, 2021. Picture taken February 10, 2021. REUTERS/Juan Medina

Francisco Molina, head of agroforestry department at Imidra, Madrid's rural, agroforestry and alimentation investigation institute, stands next to cork oak destroyed by the historic Filomena snowstorm in Las Rozas, Spain, February 10, 2021. Picture taken February 10, 2021. REUTERS/Juan Medina

A Palestinian girl plays with snow during a snowstorm in Hebron in the Israeli-occupied West Bank February 18, 2021. REUTERS/Mussa Qawasma

Palestinians play with snow during a snowstorm in Hebron in the Israeli-occupied West Bank February 18, 2021. REUTERS/Mussa Qawasma

Palestinians play with snow during a snowstorm in Hebron in the Israeli-occupied West Bank February 18, 2021. REUTERS/Mussa Qawasma

A truck clears a road blocked by snow, during a snowstorm in the village of Kfar Shouba in southern Lebanon, February 17, 2021. REUTERS/Aziz Taher

A car drives on a snow-covered road, during a snowstorm in the village of Kfar Shouba in southern Lebanon, February 17, 2021. REUTERS/Aziz Taher

A man walks through snow during a snowstorm in the village of Kfar Shouba in southern Lebanon, February 17, 2021. REUTERS/Aziz Taher

Children play in the snow, during a snowstorm in the village of Kfar Shouba in southern Lebanon, February 17, 2021. REUTERS/Aziz Taher

Children play in the snow, during a snowstorm in the village of Kfar Shouba in southern Lebanon, February 17, 2021. REUTERS/Aziz Taher

A man uses his mobile phone, during a snowstorm in the village of Kfar Shouba in southern Lebanon, February 17, 2021. REUTERS/Aziz Taher

A dog is pictured during a snowstorm in the village of Kfar Shouba in southern Lebanon, February 17, 2021. REUTERS/Aziz Taher

A man shovels snow on a road, during a snowstorm in the village of Kfar Shouba in southern Lebanon, February 17, 2021. REUTERS/Aziz Taher

Tree branches are covered in snow during a snowstorm in the village of Kfar Shouba in southern Lebanon, February 17, 2021. REUTERS/Aziz Taher

A view shows snow covered trees, during a snowstorm in the village of Kfar Shouba in southern Lebanon, February 17, 2021. REUTERS/Aziz Taher

A girl builds a snowman after a snowstorm in Ciudad Juarez, Mexico February 15, 2021. REUTERS/Jose Luis Gonzalez

People play in the snow after a snowstorm in Ciudad Juarez, Mexico February 15, 2021. REUTERS/Jose Luis Gonzalez

A woman runs in a park after a snowstorm in Ciudad Juarez, Mexico February 15, 2021. REUTERS/Jose Luis Gonzalez

Snowflakes fall on a man during a snowstorm in the Brooklyn borough of New York City, New York, U.S., February 2, 2021. REUTERS/Brendan McDermid

A man removes snow from a car during a snowstorm in the Brooklyn borough of New York City, New York, U.S., February 2, 2021. REUTERS/Brendan McDermid

A man removes snow from a car during a snowstorm in the Brooklyn borough of New York City, New York, U.S., February 2, 2021. REUTERS/Brendan McDermid

A person uses a phone next to a snowman at Sunset Park with lower Manhattan in the background, during a snowstorm in the Brooklyn borough of New York City, New York, U.S., February 2, 2021. REUTERS/Brendan McDermid

A child walks in the snow at Sunset Park with lower Manhattan in the background, during a snowstorm in the Brooklyn borough of New York City, New York, U.S., February 2, 2021. REUTERS/Brendan McDermid

A person sleds during a snowstorm in the Brooklyn borough of New York City, New York, U.S., February 2, 2021. REUTERS/Brendan McDermid

A child sleds during a snowstorm in the Brooklyn borough of New York City, New York, U.S., February 2, 2021. REUTERS/Brendan McDermid

A man removes snow from a car during a snowstorm in the Brooklyn borough of New York City, New York, U.S., February 2, 2021. REUTERS/Brendan McDermid TPX IMAGES OF THE DAY

A woman removes snow from a car during a snowstorm in the Brooklyn borough of New York City, New York, U.S., February 2, 2021. REUTERS/Brendan McDermid

A person rides a bike during a snowstorm in the Brooklyn borough of New York City, New York, U.S., February 2, 2021. REUTERS/Brendan McDermid

A person rides a scooter during a snowstorm in the Brooklyn borough of New York City, New York, U.S., February 2, 2021. REUTERS/Brendan McDermid

A delivery biker navigates a snow drift during a snow storm, during the coronavirus disease (COVID-19) pandemic in the Manhattan borough of New York City, New York, U.S., February 1, 2021. REUTERS/Caitlin Ochs

Snow plows wait at a traffic light on 8th Avenue during a snow storm, during the coronavirus disease (COVID-19) pandemic in the Manhattan borough of New York City, New York, U.S., February 1, 2021. REUTERS/Caitlin Ochs

A man walks his dog Maui, a Balinese Poodle, in Central Park during a snow storm, during the coronavirus disease (COVID-19) pandemic in the Manhattan borough of New York City, New York, U.S., February 1, 2021. REUTERS/Caitlin Ochs.

Birds stand on ice frozen on the surface of the Central Park Reservoir during a snow storm, during the coronavirus disease (COVID-19) pandemic in the Manhattan borough of New York City, New York, U.S., February 1, 2021. REUTERS/Caitlin Ochs

A worker clears snow from Times Square during a snow storm, during the coronavirus disease (COVID-19) pandemic in the Manhattan borough of New York City, New York, U.S., February 1, 2021. REUTERS/Caitlin Ochs.

People navigate snow while walking in Central Park during a snow storm, during the coronavirus disease (COVID-19) pandemic in the Manhattan borough of New York City, New York, U.S., February 1, 2021. REUTERS/Caitlin Ochs

A New York City sanitation truck clears snow from the roadway during a snow storm, during the coronavirus disease (COVID-19) pandemic in the Manhattan borough of New York City, New York, U.S., February 1, 2021. REUTERS/Caitlin Ochs

People sled in Central Park during a snow storm, during the coronavirus disease (COVID-19) pandemic in the Manhattan borough of New York City, New York, U.S., February 1, 2021. REUTERS/Caitlin Ochs

A worker clears snow from Times Square during a snow storm, during the coronavirus disease (COVID-19) pandemic in the Manhattan borough of New York City, New York, U.S., February 1, 2021. REUTERS/REUTERS/Caitlin Ochs.

A man takes a picture of the frozen lake at Central Park during a snow storm, during the coronavirus disease (COVID-19) pandemic in the Manhattan borough of New York City, New York, U.S., February 1, 2021. REUTERS/REUTERS/Caitlin Ochs

Pedestrians walk in the East Village during a snow storm, during the coronavirus disease (COVID-19) pandemic in the Manhattan borough of New York City, New York, U.S., February 1, 2021. REUTERS/. REUTERS/Caitlin Ochs

A worker clears the sidewalk during a snow storm, during the coronavirus disease (COVID-19) pandemic in the Manhattan borough of New York City, New York, U.S., February 1, 2021. REUTERS/REUTERS/Caitlin Ochs

A person walks through Central Park using a garbage bag as an additional layer during a snow storm, during the coronavirus disease (COVID-19) pandemic in the Manhattan borough of New York City, New York, U.S., February 1, 2021. REUTERS/. REUTERS/Caitlin Ochs.

A person braces against the wind on a walk in Central Park during a snow storm, during the coronavirus disease (COVID-19) pandemic in the Manhattan borough of New York City, New York, U.S., February 1, 2021. REUTERS/. REUTERS/Caitlin Ochs.

A New York City bus operates in a snow storm, during the coronavirus disease (COVID-19) pandemic in the Manhattan borough of New York City, New York, U.S., February 1, 2021. REUTERS/. REUTERS/Caitlin Ochs.

An activist in opposition to the death penalty protests during a snowstorm outside of the United States Penitentiary in Terre Haute, Indiana, U.S. January 15, 2021. REUTERS/Bryan Woolston

An activist in opposition to the death penalty protests during a snowstorm outside of the United States Penitentiary in Terre Haute, Indiana, U.S. January 15, 2021. REUTERS/Bryan Woolston

An activist in opposition to the death penalty protests during a snowstorm outside of the United States Penitentiary in Terre Haute, Indiana, U.S. January 15, 2021. REUTERS/Bryan Woolston

An activist in opposition to the death penalty protests during a snowstorm outside of the United States Penitentiary in Terre Haute, Indiana, U.S. January 15, 2021. REUTERS/Bryan Woolston

An activist in opposition to the death penalty protests during a snowstorm outside of the United States Penitentiary in Terre Haute, Indiana, U.S. January 15, 2021. REUTERS/Bryan Woolston TPX IMAGES OF THE DAY

The U.S. Capitol is seen behind a snow pile from a previous day snowstorm on Capitol Hill in Washington, U.S., December 17, 2020. REUTERS/Tom Brenner