Dark clouds hang over the financial district as the spread of the coronavirus disease (COVID-19) continues during an extended lockdown and a demand by the German government for more home office possibilities in Frankfurt, Germany, February 18, 2021. REUTERS/Kai Pfaffenbach

Dark clouds hang over the financial district as the spread of the coronavirus disease (COVID-19) continues during an extended lockdown and a demand by the German government for more home office possibilities in Frankfurt, Germany, February 18, 2021. REUTERS/Kai Pfaffenbach

Dark clouds hang over the financial district as the spread of the coronavirus disease (COVID-19) continues during an extended lockdown and a demand by the German government for more home office possibilities in Frankfurt, Germany, February 18, 2021. REUTERS/Kai Pfaffenbach

Sun rises behind the clouds in front of the statue entitled "Couple" by British artist Sean Henry in Newbiggin-by-the Sea, Northumberland, Britain February 16, 2021. REUTERS/Lee Smith

Sun rises behind the clouds in front of the statue entitled "Couple" by British artist Sean Henry in Newbiggin-by-the Sea, Northumberland, Britain February 16, 2021. REUTERS/Lee Smith

Sun rises behind the clouds in front of the statue entitled "Couple" by British artist Sean Henry in Newbiggin-by-the Sea, Northumberland, Britain February 16, 2021. REUTERS/Lee Smith

A car used by local journalists stands engulfed in clouds of tear gas during a protest against Haiti's President Jovenel Moise, in Port-au-Prince, Haiti February 10, 2021. REUTERS/Jeanty Junior Augustin

A man tries to unlock his motorcycle while standing in a cloud of tear gas during protests against Haiti's President Jovenel Moise, in Port-au-Prince, Haiti February 8, 2021. REUTERS/Jeanty Junior Augustin

Cloud and fog are seen in the village of Barouk, Lebanon, February 7, 2021. Picture taken February 7, 2021. REUTERS/Issam Abdallah

A cyclist passes by the European Central Bank (ECB) under dark clouds as the spread of the coronavirus disease (COVID-19) continues during an extended lockdown and a demand by the German government for more home office possibilities in Frankfurt, Germany, February 3, 2021. REUTERS/Kai Pfaffenbach

Love locks are seen in front of the skyline disappearing in clouds as the spread of the coronavirus disease (COVID-19) continues during an extended lockdown and a demand by the German government for more home office possibilities in Frankfurt, Germany, February 2, 2021. REUTERS/Kai Pfaffenbach

The city's financial district high-rise buildings disappear in clouds as the spread of the coronavirus disease (COVID-19) continues during an extended lockdown and a demand by the German government for more home office possibilities in Frankfurt, Germany, February 2, 2021. REUTERS/Kai Pfaffenbach

The skyline with the city's financial district high-rise buildings disappearing in clouds is reflected in a puddle as the spread of the coronavirus disease (COVID-19) continues during an extended lockdown and a demand by the German government for more home office possibilities in Frankfurt, Germany, February 2, 2021. REUTERS/Kai Pfaffenbach

The high-rise buildings of financial district disappearing in clouds are reflected in a puddle as the spread of the coronavirus disease (COVID-19) continues during an extended lockdown and a demand by the German government for more home office possibilities in Frankfurt, Germany, February 2, 2021. REUTERS/Kai Pfaffenbach

A general view shows clouds above Brazil's National Congress headquarters in Brasilia, Brazil February 01, 2021. REUTERS/Ueslei Marcelino

A general view shows clouds above Brazil's National Congress headquarters in Brasilia, Brazil February 01, 2021. REUTERS/Ueslei Marcelino

A general view shows clouds above Brazil's National Congress headquarters in Brasilia, Brazil February 01, 2021. REUTERS/Ueslei Marcelino

A hawk flies below clouds before expected heavy rains, as the coronavirus disease (COVID-19) continues, in Los Angeles, California, U.S., January 28, 2021. REUTERS/Lucy Nicholson

Clouds pass the Capitol before the inauguration of U.S. President-elect Joe Biden, in Washington, U.S. January 20, 2021. REUTERS/Mike Segar

Protesters rally at the White House against the death in Minneapolis police custody of George Floyd, in Washington, D.C., U.S. May 31, 2020. Jonathan Ernst: "On this night, protesters who had gathered near the White House in response to the police killing of George Floyd in Minneapolis were met by riot police firing tear gas and rubber ordnance. Protesters will frequently use the White House as a backdrop for their cause, but this was the first time I'd seen it quite like this – with maybe the world's most recognizable facade looming behind a cloud of smoke and the silhouetted figures of protesters dodging ... projectiles." REUTERS/Jonathan Ernst/File Photo SEARCH "PHOTOGRAPHERS TRUMP" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY.

Clouds pass over the White House as preparations for the inauguration of President-elect Joe Biden continue in Washington, U.S., January 18, 2021. REUTERS/Joshua Roberts

Clouds pass over the White House as preparations for the inauguration of President-elect Joe Biden continue in Washington, U.S., January 18, 2021. REUTERS/Joshua Roberts

Clouds pass over the White House as preparations for the inauguration of President-elect Joe Biden continue in Washington, U.S., January 18, 2021. REUTERS/Joshua Roberts

Clouds pass over the White House as preparations for the inauguration of President-elect Joe Biden continue in Washington, U.S., January 18, 2021. REUTERS/Joshua Roberts

A cloud billows from a doorway forced open by a mob of supporters of U.S. President Donald Trump as they storm the U.S. Capitol Building in Washington, U.S., January 6, 2021. Picture taken January 6, 2021. REUTERS/Leah Millis

A cloud of colored smoke appears as a mob of supporters of U.S. President Donald Trump storm the U.S. Capitol Building in Washington, U.S., January 6, 2021. Picture taken January 6, 2021. REUTERS/Leah Millis

Pro-Trump protesters react amidst a cloud of tear gas during clashes with Capitol police at a rally to contest the certification of the 2020 U.S. presidential election results by the U.S. Congress, at the U.S. Capitol Building in Washington, U.S, January 6, 2021. REUTERS/Shannon Stapleton

A Sheriff's deputy stands in a cloud of yellow smoke as police chase protesters after a riot was declared near the Justice Center on New Year's Eve in downtown Portland, Oregon, U.S. December 31, 2020. Picture taken December 31, 2020. REUTERS/Mathieu Lewis-Rolland

The sun shines through the clouds onto the sea while a ferry leaves the Port of Dover following the end of the Brexit transition period, Dover, Britain, January 1, 2021. REUTERS/Peter Cziborra

The sun shines through the clouds onto the sea near the Port of Dover following the end of the Brexit transition period, Dover, Britain, January 1, 2021. REUTERS/Peter Cziborra

Dark clouds are seen over St Ives during New Year's Eve amid the coronavirus disease (COVID-19) outbreak, in St Ives, Cornwall, Britain December 31, 2020. REUTERS/Tom Nicholson

Storm clouds gather over the Irish Sea as a crew member stands on the bridge of the ferry between Scotland and Ireland near Belfast, Northern Ireland December 29, 2020. Picture taken December 29, 2020. REUTERS/Phil Noble

Storm clouds gather over the Irish Sea near Belfast, Northern Ireland December 29, 2020. Picture taken December 29, 2020. REUTERS/Phil Noble

Moon is seen between clouds as it rises beside historical Galata Tower in Istanbul, Turkey December 30, 2020. REUTERS/Umit Bektas

Clouds from tropical storm Nangka are pictured over Hong Kong, China, October 13, 2020. REUTERS/Tyrone Siu SEARCH "HONG KONG IMMIGRATION" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Riot police officers walk in a cloud of tear gas during a demonstration in reaction to the death of Klodian Rasha, after he was shot dead during the country's overnight curfew imposed due to the coronavirus disease (COVID-19), in Tirana, Albania, December 13, 2020. REUTERS/Florion Goga

A man wearing a protective face mask walks through a cloud of dust amid the rubble of demolished mausoleums at the Northern Cemetery known as "City of Dead" in order to build a flyover al-Fardous through graveyards, allegedly from the Mamluk era in the Cairo Necropolis, as the coronavirus disease (COVID-19) pandemic continues in Egypt December 8, 2020. REUTERS/Amr Abdallah Dalsh

Clouds reflect off the water as they pass over while SpaceX prepares their super heavy-lift Starship SN8 rocket for a test launch this week at the company's facilities in Boca Chica, Texas, U.S. December 1, 2020. REUTERS/Gene Blevins REFILE - CORRECTING CITY

Clouds reflect off the water as they pass over while SpaceX prepares their super heavy-lift Starship SN8 rocket for a test launch this week at the company's facilities in Boca Chica, Texas, U.S. December 1, 2020. REUTERS/Gene Blevins REFILE - CORRECTING CITY

Samburu men attempt to fend-off a swarm of desert locusts flying over a grazing land in Lemasulani village, Samburu County, Kenya, January 17, 2020. Reuters photographer Monicah Mwangi: "Desert locusts have been recorded in the Horn of Africa since biblical times, but this year, unusual weather patterns exacerbated by climate change created the perfect circumstances for swarms to descend in northern Kenya. The entire grazing field where they had gathered in Samburu County was covered in yellow as the insects munched on grass meant for livestock. 'The locusts are in millions, they will finish all the vegetation, and then what will our animals feed on?' said one local trying to fend off the swarms by shouting and beating on empty containers. Being in the middle of the swarm of locusts was scary, as some would hit the camera with full force and die. I had to keep on wiping my camera lens, and my movement in the cloud was limited. If I had tried to talk, I would be eating flying locusts raw. I wanted to juxtapose the colourful modern clothes of the Samburu men using an old technique to try and disperse the swarm with the buzzing yellow locusts destroying the future by eating the grazing grass. Soon after I took this picture, a plane spraying pesticide flew over the swarm and they disappeared on their migratory path." REUTERS/Monicah Mwangi/File photo SEARCH "POY STORIES 2020" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY

Clouds pass over the White House in Washington, U.S., November 21, 2020. REUTERS/Joshua Roberts

Light illuminates clouds over apartment blocks in Saint Petersburg, Russia November 19, 2020. REUTERS/Anton Vaganov

A general view of the main business district as rain clouds gather above in Colombo, Sri Lanka, November 17, 2020. REUTERS/Dinuka Liyanawatte

A general view shows storm clouds as Hurricane Iota approaches, in Tegucigalpa, Honduras November 16, 2020. REUTERS/Jorge Cabrera

A general view shows storm clouds as Hurricane Iota approaches, in Tegucigalpa, Honduras November 16, 2020. REUTERS/Jorge Cabrera

Friends Vinicius Sanctus and Alessandro Russo ride electric monowheels called 'nuvem' (cloud) that were invented by them and inspired by the magic flying brooms of the Harry Potter series in Sao Paulo, Brazil November 7, 2020. Picture taken November 7, 2020. REUTERS/Amanda Perobelli

Alessandro Russo rides an electric monowheel called 'nuvem' (cloud), which he invented with his friend Vinicius Sanctus and is inspired by the magic flying brooms of the Harry Potter series, at Minhocao bridge in Sao Paulo, Brazil November 7, 2020. Picture taken November 7, 2020. REUTERS/Amanda Perobelli

Alessandro Russo rides an electric monowheel called 'nuvem' (cloud), which he invented with his friend Vinicius Sanctus and is inspired by the magic flying brooms of the Harry Potter series, at Paulista Avenue in Sao Paulo, Brazil November 7, 2020. Picture taken November 7, 2020. REUTERS/Amanda Perobelli

Friends Vinicius Sanctus and Alessandro Russo ride electric monowheels called 'nuvem' (cloud) that were invented by them and inspired by the magic flying brooms of the Harry Potter series in Sao Paulo, Brazil November 7, 2020. Picture taken November 7, 2020. REUTERS/Amanda Perobelli TPX IMAGES OF THE DAY

Alessandro Russo rides an electric monowheel called 'nuvem' (cloud), which he invented with his friend Vinicius Sanctus and is inspired by the magic flying brooms of the Harry Potter series, at Minhocao bridge in Sao Paulo, Brazil November 7, 2020. Picture taken November 7, 2020. REUTERS/Amanda Perobelli

Vinicius Sanctus rides an electric monowheel called 'nuvem' (cloud), which he invented with his friend Alessandro Russo and is inspired by the magic flying brooms of the Harry Potter series, at Minhocao bridge in Sao Paulo, Brazil November 7, 2020. Picture taken November 7, 2020. REUTERS/Amanda Perobelli

Friends Vinicius Sanctus and Alessandro Russo ride electric monowheels called 'nuvem' (cloud) that were invented by them and inspired by the magic flying brooms of the Harry Potter series at Paulista Avenue in Sao Paulo, Brazil November 7, 2020. Picture taken November 7, 2020. REUTERS/Amanda Perobelli

Alessandro Russo rides an electric monowheel called 'nuvem' (cloud), which he invented with his friend Vinicius Sanctus and is inspired by the magic flying brooms of the Harry Potter series, at Minhocao bridge in Sao Paulo, Brazil November 7, 2020. Picture taken November 7, 2020. REUTERS/Amanda Perobelli

Alessandro Russo rides an electric monowheel called 'nuvem' (cloud), which he invented with his friend Vinicius Sanctus and is inspired by the magic flying brooms of the Harry Potter series, at Paulista Avenue in Sao Paulo, Brazil November 7, 2020. Picture taken November 7, 2020. REUTERS/Amanda Perobelli

The Mont-Blanc mountain is seen on an autumn morning above a sea of clouds in Gimel, Switzerland November 6, 2020 Picture taken with a drone. REUTERS/Denis Balibouse

A woman stands beneath dark clouds on the beach with her dog in Wallasey, Britain, November 3, 2020. REUTERS/Phil Noble

The full moon is partly obscured by clouds as it rises over the Santa Maria Addolorata Cemetery before Halloween in Paola, Malta October 30, 2020. REUTERS/Darrin Zammit Lupi

Sun shines through the clouds behind the new Berlin-Brandenburg Airport in Schoenefeld near Berlin, Germany October 29, 2020. REUTERS/Hannibal Hanschke