A worker tends to plants being raised on trays stacked on top of each other on scaffoldings at Nordic Harvest?s vertical farm, where kale, lettuce and herbs are grown, in Taastrup, on the outskirts of Copenhagen, Denmark, March 13, 2023. REUTERS/Tom Little 

Thyme plants wait to be harvested at Nordic Harvest?s vertical farm in Taastrup, on the outskirts of Copenhagen, Denmark, March 13, 2023. REUTERS/Tom Little 

Workers harvest plants to be packaged and sold at Nordic Harvest?s vertical farm, where kale, lettuce and herbs are grown, in Taastrup, on the outskirts of Copenhagen, Denmark, March 13, 2023. REUTERS/Tom Little 

Workers harvest plants to be packaged and sold at Nordic Harvest?s vertical farm, where kale, lettuce and herbs are grown, in Taastrup, on the outskirts of Copenhagen, Denmark, March 13, 2023. REUTERS/Tom Little 

A worker pushes a trolley of plants to be harvested before they are packaged and sold at Nordic Harvest?s vertical farm, where kale, lettuce and herbs are grown, in Taastrup, on the outskirts of Copenhagen, Denmark, March 13, 2023. REUTERS/Tom Little 

Anders Riemann, founder of Nordic Harvest?s vertical farm, looks at thyme being grown at the company?s vertical farm in Taastrup, on the outskirts of Copenhagen, Denmark, March 13, 2023. REUTERS/Tom Little 

Workers at Nordic Harvest's vertical farm, where kale, lettuce and herbs are grown, harvest plants to be packaged and sold in Taastrup on the outskirts of Copenhagen, Denmark, March 13, 2023. REUTERS/Tom Little 

Workers at Nordic Harvest's vertical farm, where kale, lettuce and herbs are grown, harvest plants to be packaged and sold in Taastrup on the outskirts of Copenhagen, Denmark, March 13, 2023. REUTERS/Tom Little 

A worker at Nordic Harvest's vertical farm, where kale, lettuce and herbs are grown, harvests plants to be packaged and sold in Taastrup on the outskirts of Copenhagen, Denmark, March 13, 2023. REUTERS/Tom Little 

A worker walks between scaffoldings holding trays of plants being grown on Nordic Harvest?s vertical farm, where kale, lettuce and herbs are grown, in Taastrup, on the outskirts of Copenhagen, Denmark, March 13, 2023. REUTERS/Tom Little 

An early 19th-century tower stands over the harbour of Christianso, a small archipelago with just 98 inhabitants under the administration of the Danish defense ministry in the Baltic Sea near the Nord Stream pipeline blast sites, in Denmark, March 9, 2023. REUTERS/Tom Little 

An early 19th-century tower stands over the harbour of Christianso, a small archipelago with just 98 inhabitants under the administration of the Danish defense ministry in the Baltic Sea near the Nord Stream pipeline blast sites, in Denmark, March 9, 2023. REUTERS/Tom Little 

An early 19th-century tower stands over the harbour of Christianso, a small archipelago with just 98 inhabitants under the administration of the Danish defense ministry in the Baltic Sea near the Nord Stream pipeline blast sites, in Denmark, March 9, 2023. REUTERS/Tom Little 

A sign indicates the post office on Christianso, a small archipelago with just 98 inhabitants under the administration of the Danish defense ministry in the Baltic Sea near the Nord Stream pipeline blast sites, in Denmark, March 9, 2023. REUTERS/Tom Little 

Antique canons on now-disused fortifications overlook the harbor of Christianso, a small archipelago with just 98 inhabitants under the administration of the Danish defense ministry in the Baltic Sea near the Nord Stream pipeline blast sites, in Denmark, March 9,2023. REUTERS/Tom Little 

A Danish naval vessel on patrol in the Baltic passes the island of Christianso, a small archipelago with just 98 inhabitants under the administration of the Danish defense ministry in the Baltic Sea near the Nord Stream pipeline blast sites, in Denmark, March 9, 2023. REUTERS/Tom Little 

A sign indicates the post office on Christianso, a small archipelago with just 98 inhabitants under the administration of the Danish defense ministry in the Baltic Sea near the Nord Stream pipeline blast sites, in Denmark, March 9, 2023. REUTERS/Tom Little 

A Danish naval vessel on patrol in the Baltic passes the island of Christianso, a small archipelago with just 98 inhabitants under the administration of the Danish defense ministry in the Baltic Sea near the Nord Stream pipeline blast sites, in Denmark, March 9, 2023. REUTERS/Tom Little 

Soren Thiim Andersen, the highest authority on the island of Christianso, a small archipelago with just 98 inhabitants under administration of the Danish defense ministry, looks on in the Baltic Sea near the Nord Stream pipeline blast sites, in Denmark, March 9, 2023. REUTERS/Tom Little 

Soren Thiim Andersen, the highest authority on the island of Christianso, a small archipelago with just 98 inhabitants under the administration of the Danish defense ministry, looks on in the Baltic Sea near the Nord Stream pipeline blast sites, in Denmark, March 9, 2023. REUTERS/Tom Little 

Visitors disembark from a ferry on the island of Christianso, a small archipelago with just 98 inhabitants under the administration of the Danish defense ministry, in the Baltic Sea near the Nord Stream pipeline blast sites, in Denmark, March 9, 2023. REUTERS/Tom Little 

Researcher Mikael Larsson examines samples of saffron found after nearly 500 years on the seabed on the wreck of the Gribshunden, a ship that sank in 1495 off Sweden's Baltic coast, as he works in a laboratory in Lund University, Sweden, March 2, 2023. REUTERS/Tom Little REFILE - CORRECTING COUNTRY 

Researchers Mikael Larsson and Brendan Foley examine samples of saffron found after nearly 500 years on the seabed on the wreck of the Gribshunden, a ship that sank in 1495 off Sweden's Baltic coast, in a laboratory in Lund University, Sweden, March 2, 2023. REUTERS/Tom Little REFILE - CORRECTING COUNTRY 

Researcher Brendan Foley holds up a jar containing saffron preserved in water, part of a cache of unusually well preserved spices and foodstuffs found on the wreck of the Gribshunden, in his laboratory in Lund University, Sweden, March 2, 2023. REUTERS/Tom Little REFILE - CORRECTING COUNTRY 

Researcher Mikael Larsson replaces a sample of a spice found well preserved on the Gribshunden, a ship that sank off Sweden's Baltic Sea coast in 1495, in a laboratory in Lund University, Sweden, March 2, 2023. REUTERS/Tom Little REFILE - CORRECTING COUNTRY 

A jar containing saffron preserved in water that was retrieved from the wreck of a 15th century Danish warship, the Gribshunden, after more than 500 years on the seabed, sits in a laboratory in Lund University, Sweden, March 2, 2023. REUTERS/Tom Little REFILE - CORRECTING COUNTRY 

Researcher Mikael Larsson examines samples of saffron found after nearly 500 years on the seabed on the wreck of the Gribshunden, a ship that sank in 1495 off Sweden's Baltic coast, as he works in a laboratory in Lund University , Sweden, March 2, 2023. REUTERS/Tom Little REFILE - CORRECTING COUNTRY 

Researcher Mikael Larsson examines peppercorns found after nearly 500 years on the seabed on the wreck of the Gribshunden, a ship that sank in 1495 off Sweden's Baltic coast, as he works in a laboratory in Lund University, Sweden, March 2, 2023. REUTERS/Tom Little REFILE - CORRECTING COUNTRY 

Researcher Mikael Larsson examines peppercorns found after nearly 500 years on the seabed on the wreck of the Gribshunden, a ship that sank in 1495 off Sweden's Baltic coast, as he works in a laboratory in Lund University, Sweden, March 2, 2023. REUTERS/Tom Little REFILE - CORRECTING COUNTRY 

The Little Mermaid statue is seen painted in the colours of the Russian flag, in what police said was a "case of vandalism", in Copenhagen, Denmark, March 2, 2023.REUTERS/Johannes Birkebaek 

The Little Mermaid statue is seen painted in the colours of the Russian flag, in what police said was a "case of vandalism", in Copenhagen, Denmark, March 2, 2023. REUTERS/Johannes Birkebaek 

The Little Mermaid statue is seen painted in the colours of the Russian flag, in what police said was a "case of vandalism", in Copenhagen, Denmark, March 2, 2023. REUTERS/Johannes Birkebaek 

Danish director Simon Lereng Wilmont, whose documentary 'A House Made of Splinters' about a children's shelter in eastern Ukraine has been nominated for an Oscar, during an interview with Reuters in his office in Copenhagen, Denmark, February 28, 2023. REUTERS/Tom Little 

Danish director Simon Lereng Wilmont, whose documentary 'A House Made of Splinters' about a children's shelter in eastern Ukraine has been nominated for an Oscar, during an interview with Reuters in his office in Copenhagen, Denmark, February 28, 2023. REUTERS/Tom Little 

Danish director Simon Lereng Wilmont, whose documentary 'A House Made of Splinters' about a children's shelter in eastern Ukraine has been nominated for an Oscar, during an interview with Reuters in his office in Copenhagen, Denmark, February 28, 2023. REUTERS/Tom Little 

Danish director Simon Lereng Wilmont, whose documentary 'A House Made of Splinters' about a children's shelter in eastern Ukraine has been nominated for an Oscar, during an interview with Reuters in his office in Copenhagen, Denmark, February 28, 2023. REUTERS/Tom Little 

Danish director Simon Lereng Wilmont, whose documentary 'A House Made of Splinters' about a children's shelter in eastern Ukraine has been nominated for an Oscar, during an interview with Reuters in his office in Copenhagen, Denmark, February 28, 2023. REUTERS/Tom Little 

A phone is pictured in a top secret historic Danish nuclear bunker, that has been opened to the public for the first time, is seen near Oplev, Denmark, February 27, 2023. REUTERS/Tom Little 

The entrance to a top secret historic Danish nuclear bunker, that has been opened to the public for the first time, is seen near Oplev, Denmark, February 27, 2023. REUTERS/Tom Little 

Helmets and rubber boots are pictured in a top secret historic Danish nuclear bunker, that has been opened to the public for the first time, is seen near Oplev, Denmark, February 27, 2023. REUTERS/Tom Little 

The doctors room of a top secret historic Danish nuclear bunker, that has been opened to the public for the first time, is seen near Oplev, Denmark, February 27, 2023. REUTERS/Tom Little 

A corridor is pictured inside a top secret historic Danish nuclear bunker, that has been opened to the public for the first time, is seen near Oplev, Denmark, February 27, 2023. REUTERS/Tom Little 

A sign is pictured inside a top secret historic Danish nuclear bunker, that has been opened to the public for the first time, near Oplev, Denmark, February 27, 2023. REUTERS/Tom Little 

A technical room of a top secret historic Danish nuclear bunker, that has been opened to the public for the first time, is seen near Oplev, Denmark, February 27, 2023. REUTERS/Tom Little 

Helmets and rubber boots are pictured in a top secret historic Danish nuclear bunker, that has been opened to the public for the first time, near Oplev, Denmark, February 27, 2023. REUTERS/Tom Little 

The lounge room of a top secret historic Danish nuclear bunker, that has been opened to the public for the first time, is seen near Oplev, Denmark, February 27, 2023. REUTERS/Tom Little 

The engine room of a top secret historic Danish nuclear bunker, that has been opened to the public for the first time, is seen near Oplev, Denmark, February 27, 2023. REUTERS/Tom Little 

The cabinet room of a top secret historic Danish nuclear bunker, that has been opened to the public for the first time, is seen near Oplev, Denmark, February 27, 2023. REUTERS/Tom Little 

The cafeteria of a top secret historic Danish nuclear bunker, that has been opened to the public for the first time, is seen near Oplev, Denmark, February 27, 2023. REUTERS/Tom Little 

A person walks inside a top secret historic Danish nuclear bunker, that has been opened to the public for the first time, near Oplev, Denmark, February 27, 2023. REUTERS/Tom Little 

A view of the entrance to a top secret historic Danish nuclear bunker, that has been opened to the public for the first time, is seen near Oplev, Denmark, February 27, 2023. REUTERS/Tom Little 

People take part in a protest outside of Danish Parliament building in Copenhagen, Denmark, February 5, 2023. REUTERS/Johannes Birkebaek 

Outgoing Maersk chief executive Soren Skou (L), incoming CEO Vincent Clerc (C) and chairman Robert Maersk Uggla attend a news conference at the company's headquarters in Copenhagen, Denmark December 12, 2022. REUTERS/Jacob Gronholt-Pedersen 

Vincent Clerc, who on Monday was appointed new chief executive of Maersk, speaks to media at the shipping company's headquarters in Copenhagen, Denmark December 12, 2022. REUTERS/Jacob Gronholt-Pedersen 

Soccer Football - Champions League - Group G - FC Copenhagen v Borussia Dortmund - Telia Parken, Copenhagen, Denmark - November 2, 2022 Borussia Dortmund's Youssoufa Moukoko after the match REUTERS/Fabian Bimmer 

Soccer Football - Champions League - Group G - FC Copenhagen v Borussia Dortmund - Telia Parken, Copenhagen, Denmark - November 2, 2022 Borussia Dortmund's Julian Brandt in action with FC Copenhagen's Denis Vavro REUTERS/Fabian Bimmer TPX IMAGES OF THE DAY 

Soccer Football - Champions League - Group G - FC Copenhagen v Borussia Dortmund - Telia Parken, Copenhagen, Denmark - November 2, 2022 Borussia Dortmund's Anthony Modeste shoots at goal REUTERS/Fabian Bimmer 

Soccer Football - Champions League - Group G - FC Copenhagen v Borussia Dortmund - Telia Parken, Copenhagen, Denmark - November 2, 2022 Borussia Dortmund's Julian Brandt in action with FC Copenhagen's Denis Vavro REUTERS/Fabian Bimmer 

Soccer Football - Champions League - Group G - FC Copenhagen v Borussia Dortmund - Telia Parken, Copenhagen, Denmark - November 2, 2022 Borussia Dortmund's Giovanni Reyna and Karim Adeyemi in action with FC Copenhagen's William Clem REUTERS/Fabian Bimmer 

Soccer Football - Champions League - Group G - FC Copenhagen v Borussia Dortmund - Telia Parken, Copenhagen, Denmark - November 2, 2022 FC Copenhagen's Kamil Grabara reacts REUTERS/Fabian Bimmer