Bavarian federal state premier Markus Soeder attends a cabinet meeting with a blue-white coloured mask of the Bavarian flag in Munich, Germany, October 27, 2020. Peter Kneffel/Pool via REUTERS

Performers dressed in clothes in the colours of the historical white-red-white flag of Belarus are seen during a protest against the presidential election results demanding the resignation of Belarusian President Alexander Lukashenko and the release of political prisoners, near the Government House in Independence Square in Minsk, Belarus August 16, 2020. REUTERS/Vasily Fedosenko

Performers dressed in clothes in the colours of the historical white-red-white flag of Belarus are seen during a protest against the presidential election results demanding the resignation of Belarusian President Alexander Lukashenko and the release of political prisoners, near the Government House in Independence Square in Minsk, Belarus August 16, 2020. REUTERS/Vasily Fedosenko

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he gestures while speaking with schoolchildren during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as speaks with schoolchildren during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he speaks with schoolchildren next to Mayor of Poissy Karl Olive in a class during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he stands next to Mayor of Poissy Karl Olive in a class during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he speaks with schoolchildren during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he arrives to speak with schoolchildren during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as speaks with schoolchildren during a class during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he arrives to speak with schoolchildren during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he arrives to speak with schoolchildren during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he arrives to speak with schoolchildren during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he gestures while speaking with schoolchildren during a class during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS

France's President Emmanuel Macron wearing a protective face mask with a blue-white-red coloured ribbon gestures while speaking with schoolchildren in a classroom during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS TPX IMAGES OF THE DAY

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he gestures while speaking with schoolchildren during a class during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as speaks with schoolchildren during a class during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he gestures while speaking with schoolchildren during a class during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he gestures while speaking with schoolchildren during a class during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he gestures while speaking with schoolchildren during a class during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he speaks with schoolchildren during a class during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he speaks with schoolchildren during a class during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he speaks with schoolchildren during a class during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he gestures while speaking with schoolchildren during a class during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he speaks with schoolchildren during a class during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS

Calves stand together in their shed at a farm in Be'er Tuvia, southern Israel February 5, 2020. Picture taken February 5, 2020. REUTERS/Amir Cohen

Calves stand together in their shed at a farm in Be'er Tuvia, southern Israel February 5, 2020. Picture taken February 5, 2020. REUTERS/Amir Cohen

A barn and trees stand in snow covered field in Cola, Iowa, U.S., January 28, 2020. REUTERS/Brian Snyder

A combination of a U.S. flag and the Confederate Battle Flag flies outside a home in Moscow, Iowa, U.S., January 25, 2020. REUTERS/Brian Snyder

Flags of Mexico, United States and Canada are pictured at a security booth at Zaragoza-Ysleta border crossing bridge, in Ciudad Juarez, Mexico January 16, 2020. REUTERS/Jose Luis Gonzalez

The Temple of the Transfiguration is seen in the Novodevichy monastery on a snowy day in Moscow, Russia January 11, 2020. REUTERS/Maxim Shemetov

Pigeons sit on a wire, with the domes of the Novodevichy monastery in the background, on a snowy day in Moscow, Russia January 11, 2020. REUTERS/Maxim Shemetov TPX IMAGES OF THE DAY

A chapel is seen in the Novodevichy monastery on a snowy day in Moscow, Russia January 11, 2020. REUTERS/Maxim Shemetov

Mountains are seen from the Presena Glacier, in Passo Paradiso, Italy, January 9, 2020. Picture taken January 9, 2020. REUTERS/Yara Nardi

Moon is seen behind the mountain seen from the Presena Glacier, in Passo Paradiso, Italy, January 9, 2020. Picture taken January 9, 2020. REUTERS/Yara Nardi

A man takes a picture of the mountains from the Presena Glacier, in Passo Paradiso, Italy, January 9, 2020. Picture taken January 9, 2020. REUTERS/Yara Nardi

Demonstrators take cover from water cannon fired by riot police, with an improvised shield during a protest against Chile's government, in Santiago, Chile November 28, 2019. REUTERS/Ivan Alvarado

Riot police fire water cannon as demonstrators protest against Chile's government, in Santiago, Chile November 28, 2019. REUTERS/Ivan Alvarado

The U.S. Capitol building is seen in a reflection on Capitol Hill in Washington, U.S., November 27, 2019. REUTERS/Loren Elliott

Waves at high tide make their way over rocks and onto the road in Oceanside, California, U.S., November 27, 2019. REUTERS/Mike Blake

Sugar beets covered in snow at a processing facility in East Grand Forks, Minnesota, U.S., November 22, 2019. Due to a wet summer and early frost, sugar beet farmers were forced to leave hundreds of acres of sugar beet crop unharvested, a hard hit for the US agriculture industry already experiencing a difficult few years. Picture taken November 22, 2019. REUTERS/Nicholas Pfosi

Sugar beets covered in snow at a processing facility in East Grand Forks, Minnesota, U.S., November 22, 2019. Due to a wet summer and early frost, sugar beet farmers were forced to leave hundreds of acres of sugar beet crop unharvested, a hard hit for the US agriculture industry already experiencing a difficult few years. Picture taken November 22, 2019. REUTERS/Nicholas Pfosi

Sugar beets covered in snow at a processing facility in East Grand Forks, Minnesota, U.S., November 22, 2019. Due to a wet summer and early frost, sugar beet farmers were forced to leave hundreds of acres of sugar beet crop unharvested, a hard hit for the US agriculture industry already experiencing a difficult few years. Picture taken November 22, 2019. REUTERS/Nicholas Pfosi

Lightnings strike in the sea off the shore of Artemida, Greece, November 26, 2019. REUTERS/Vassilis Triandafyllou

A lightning strikes over the sea off the shore of Artemida, Greece, November 26, 2019. REUTERS/Vassilis Triandafyllou

Lightnings strike in the sea off the shore of Artemida, Greece, November 26, 2019. REUTERS/Vassilis Triandafyllou

Partly frozen Svisloch river is seen in Minsk, Belarus November 26, 2019. REUTERS/Vasily Fedosenko

A patch of snow is covered for tourists to use with slides later in the season on the Tsanfleuron Glacier near Les Diablerets in Switzerland, September 13, 2019. Picture taken September 13, 2019. REUTERS/Denis Balibouse

The Eiger, Guggi and Giesen Glaciers are pictured near the Jungfrau in the Swiss Alps in Wengen, Switzerland August 27, 2019. Picture taken August 27, 2019. REUTERS/Denis Balibouse

A Jungfraubahn train is pictured in front of the Eiger Glacier in Wengen, Switzerland August 27, 2019. Picture taken August 27, 2019. REUTERS/Denis Balibouse

Egrets are seen next to a discarded tire on the shores of the Paraguay River, in Ita Enramada, Paraguay November 23, 2019. REUTERS/Jorge Adorno

A view of the White House by night in Washington, U.S., November 16, 2019. REUTERS/Yara Nardi

Car is seen covered with snow in village of Iselsberg, Austria, November 14, 2019. REUTERS/Antonio Bronic

Cars move through snow covered fields, on a road leading in Oberwarngau, near Munich, Germany November 14, 2019. REUTERS/Andreas Gebert

Snow drifts are seen on a summit near the village of Seefeld, Austria, November 14, 2019 REUTERS/Angelika Warmuth

Larches stand in the snow near the village of Seefeld, Austria, November 14, 2019 REUTERS/Angelika Warmuth

Larches stand in the snow near the village of Seefeld, Austria, November 14, 2019 REUTERS/Angelika Warmuth

Snow lies on a deck chair in a garden near the village of Seefeld, Austria, November 14, 2019 REUTERS/Angelika Warmuth

The road along the Russian - Norway border is seen in Pasvik valley, Finnmark county, Norway, October 23, 2019. REUTERS/Maxim Shemetov

A general view of houses in Kirkenes, Norway, October 24, 2019. REUTERS/Maxim Shemetov