European Union flags fly outside the European Commission headquarters in Brussels, Belgium March 19, 2019 REUTERS/Yves Herman 

Candles are seen during the Festival of Lights Cittadella, in the medieval citadel in Victoria, on the island of Gozo, Malta, March 16, 2019. Photo taken March 16, 2019. REUTERS/Darrin Zammit Lupi 

Eggs are displayed for sale at a market in Tegucigalpa, Honduras March 15, 2019. REUTERS/Jorge Cabrera 

Clay piggy banks are displayed in a store in the Central Market in San Jose, Costa Rica March 13, 2019. REUTERS/Juan Carlos Ulate 

Bottles of candies are displayed for sale at a shop in Peshawar, Pakistan January 23, 2019. REUTERS/Fayaz Aziz 

Candies are displayed for sale on a street in Hanoi, Vietnam January 22, 2019. REUTERS/Kham 

Traditional sweet fruits are displayed for sale on a street in Hanoi, Vietnam January 22, 2019. REUTERS/Kham 

Michael Moskowitz, president of Panasonic Consumer Electronics Company Canada, displays a LUMIX S full-frame mirrorless camera during a Panasonic news conference at the 2019 Consumer Electronics Show (CES) in Las Vegas, Nevada, U.S. January 7, 2019. REUTERS/Steve Marcus 

Baby monkeys play on a wall of India's Parliament premises in New Delhi, India, November 15, 2018. Picture taken November 15, 2018. REUTERS/Anushree Fadnavis TPX IMAGES OF THE DAY 

Toys depicting Santa Claus are seen at the Christmas market in Tallinn, Estonia December 9, 2018. REUTERS/Ints Kalnins 

A dog walks past trees covered with ash after the eruption of the Fuego volcano in San Miguel Los Lotes in Escuintla, Guatemala, June 8, 2018. REUTERS/Carlos Jasso SEARCH "POY GLOBAL" FOR FOR THIS STORY. SEARCH "REUTERS POY" FOR ALL BEST OF 2018 PACKAGES. TPX IMAGES OF THE DAY. 

Plastic straws are on display in a coffee shop in Ciudad Juarez, Mexico November 22, 2018. Picture taken November 22, 2018. REUTERS/Jose Luis Gonzalez 

Volunteers sort caps at the Association Bouchon d'Amour which collects and recycles plastic caps in Martignas-Sur-Jalles near Bordeaux, France, November 23, 2018. REUTERS/Regis Duvignau 

Bundles of pressed PET (polyethylene terephthalate) bottles made out of plastic are seen at the Transcycle Transport & Recycling AG company in Neuenhof, Switzerland November 22, 2018. Picture taken November 22, 2018. REUTERS/Arnd Wiegmann 

Olive oil in plastic bottles are displayed for sale in a Mercadona supermarket in Montgat, near Barcelona, Spain, November 22, 2018. REUTERS/Albert Gea 

Fan shells are display for sale at a market in Lima, Peru November 2, 2018. REUTERS/Mariana Bazo 

Sultan Ibrahim fish are displayed at a mini fish market in Dubai, United Arab Emirates November 2, 2018. REUTERS/Ahmed Jadallah 

Old Chanares trees are seen at the Solor area next the Atacama desert, Chile, August 15, 2018. REUTERS/Ivan Alvarado 

A display of Chrysanthemums are seen at a flower shop a week before Toussaint (All Saints Day) in Montcaret near Bordeaux, France, October 24, 2018. REUTERS/Regis Duvignau 

A display of Chrysanthemums are seen at a flower shop a week before Toussaint (All Saints Day) in Montcaret near Bordeaux, France, October 24, 2018. REUTERS/Regis Duvignau 

The moon is seen framed through a bar neon sign in downtown Rome, Italy October 23, 2018. REUTERS/Max Rossi 

Wineyards are seen in Barolo, northern Italy, October 19, 2018. REUTERS/Stefano Rellandini 

A pumpkins field is seen in Malincourt, France, October 17, 2018. REUTERS/Pascal Rossignol 

A destroyed road is seen in Balaroa neighbourhood hit by an earthquake and ground liquefaction in Palu, Central Sulawesi, Indonesia, October 10, 2018. REUTERS/Jorge Silva SEARCH "QUAKE SURVIVORS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

A destroyed road is seen in Balaroa neighbourhood hit by an earthquake and ground liquefaction in Palu, Central Sulawesi, Indonesia, October 10, 2018. REUTERS/Jorge Silva SEARCH "QUAKE SURVIVORS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

Autumns colours are seen at a vineyard in Klosterneuburg, Austria, October 15, 2018. REUTERS/Heinz-Peter Bader 

Autumns colours are seen at a vineyard in Klosterneuburg, Austria, October 15, 2018. REUTERS/Heinz-Peter Bader 

Autumn colours are seen on foliage at Oetscher Nature Park near Wienerbruck, Austria October 14, 2018. REUTERS/Lisi Niesner 

A hut is pictured near a forest on an autumn morning in Val d'Anniviers, Switzerland, October 14, 2018. REUTERS/Denis Balibouse 

Autumn colors are pictured on trees on a warm afternoon day in Val d'Anniviers, Switzerland, October 13, 2018. REUTERS/Denis Balibouse 

A flock of starlings fills the dusk sky over Rome, Italy October 10, 2018. REUTERS/Tony Gentile 

A flock of starlings fills the dusk sky over Rome, Italy October 10, 2018. REUTERS/Tony Gentile 

A flock of starlings fills the dusk sky over Rome, Italy October 10, 2018. REUTERS/Tony Gentile 

A flock of starlings fills the dusk sky over Rome, Italy October 10, 2018. REUTERS/Tony Gentile 

A flock of starlings fills the dusk sky over Rome, Italy October 10, 2018. REUTERS/Tony Gentile 

Grapes are pictured in the town of Bhamdoun, Lebanon, September 6, 2018. Picture taken September 6, 2018. REUTERS/Jamal Saidi 

A resident affected by the earthquake and tsunami cries during Friday prayers in Palu, Central Sulawesi, Indonesia, October 5, 2018. REUTERS/Athit Perawongmetha TPX IMAGES OF THE DAY 

Participants celebrate, together with thousands of foreigners who support Israel, during an annual parade on the Jewish holiday of Sukkot in Jerusalem September 27, 2018. REUTERS/Ammar Awad TPX IMAGES OF THE DAY 

Residential houses are seen from the observation deck of Sapphire Tower in Istanbul, Turkey September 26, 2018. REUTERS/Murad Sezer 

A visitor looks at Nikon's first full-frame mirrorless digital camera system, Z, during the first day of Photokina trade fair in Cologne, Germany September 26, 2018. REUTERS/Wolfgang Rattay 

A visitor looks at Nikon's first full-frame mirrorless digital camera system, Z, during the first day of Photokina trade fair in Cologne, Germany September 26, 2018. REUTERS/Wolfgang Rattay 

A visitor looks through Canon's first full-frame mirrorless digital camera, Eos R, with a 50mm f/1.2 lens, during the first day of Photokina trade fair in Cologne, Germany September 26, 2018. REUTERS/Wolfgang Rattay 

A visitor looks through Canon's first full-frame mirrorless digital camera, Eos R, during the first day of Photokina trade fair in Cologne, Germany September 26, 2018. REUTERS/Wolfgang Rattay 

Photo enthusiasts look at Panasonic's first full-frame mirrorless cameras, Lumix S series, during the first day of Photokina trade fair in Cologne, Germany September 26, 2018. REUTERS/Wolfgang Rattay 

Yosuke Yamane, head of imaging at Panasonic Corporation displays Panasonic's S1R first full-frame mirrorless camera with its L-Mount during the media day of the world's largest trade fair for the photographic and imaging industries Photokina in Cologne, Germany September 25, 2018. REUTERS/Wolfgang Rattay 

Yosuke Yamane, head of imaging at Panasonic Corporation displays Panasonic's S1R first full-frame mirrorless camera with its L-Mount during the media day of the world's largest trade fair for the photographic and imaging industries Photokina in Cologne, Germany September 25, 2018. REUTERS/Wolfgang Rattay 

Yosuke Yamane, head of imaging at Panasonic Corporation displays Panasonic's S1R first full-frame mirrorless camera with its L-Mount during the media day of the world's largest trade fair for the photographic and imaging industries Photokina in Cologne, Germany September 25, 2018. REUTERS/Wolfgang Rattay 

Andreas Kaufmann, CEO of Leica Camera AG holds the latest Leica SL type mirrorless full-frame camera after unveiling their L-Mount alliance with Sigma Corporation and Panasonic Corporation at the media day of the world's largest trade fair for the photographic and imaging industries Photokina in Cologne, Germany September 25, 2018. REUTERS/Wolfgang Rattay 

Andreas Kaufmann, CEO of Leica Camera AG looks through the latest Leica SL type mirrorless full-frame camera after unveiling their L-Mount alliance with Sigma Corporation and Panasonic Corporation at the media day of the world's largest trade fair for the photographic and imaging industries Photokina in Cologne, Germany September 25, 2018. REUTERS/Wolfgang Rattay 

Residential houses are seen from a high-rise building in Hanoi, Vietnam September 24, 2018. REUTERS/Kham 

Hats are seen in a shop in Palermo, Italy, September 20, 2018. Picture taken September 20, 2018. REUTERS/Tony Gentile TPX IMAGES OF THE DAY 

Sugar beets are seen during harvest in a field in Tilloy-lez-Cambrai, France, September 17, 2018. REUTERS/Pascal Rossignol 

A view of debris and destroyed houses at the site of a landslide, after super typhoon Mangkhut hit the country, at a mining camp in Itogon, Benguet, Philippines September 17, 2018. REUTERS/Erik De Castro 

A combination picture shows the floodwater level before (top, September 14) and after Hurricane Florence in New Bern, North Carolina, U.S., September 16, 2018. REUTERS/Eduardo Munoz 

Windows are taped at a commercial building at the financial Central district as as Typhoon Mangkhut approaches Hong Kong, China September 15, 2018. REUTRERS/Bobby Yip 

A building has lost lots of windows as Hurricane Florence comes ashore on Wilmington, North Carolina, U.S., September 14, 2018. REUTERS/Carlo Allegri 

Boiled octopus are seen at a street market in Palermo, Italy September 14, 2018. REUTERS/Tony Gentile 

Fish is seen displayed at a street market in Palermo, Italy September 14, 2018. REUTERS/Tony Gentile 

Garbage lies on cracked earth at the almost empty Maria Cristina water reservoir during a severe drought near Castellon, Spain, September 14, 2018. REUTERS/Heino Kalis 

Cracked soil is pictured at the almost empty Maria Cristina water reservoir during a severe drought near Castellon, Spain, September 14, 2018. REUTERS/Heino Kalis