Arctic Sunrise ship crew members are seen on a rigid inflatable boat as it is lowered into the Indian Ocean at the Saya de Malha Bank within the Mascarene plateau, Mauritius March 4, 2021. Picture taken March 4, 2021. REUTERS/Christophe Van Der Perre

Arctic Sunrise ship crew members are seen on a rigid inflatable boat as it is lowered into the Indian Ocean at the Saya de Malha Bank within the Mascarene plateau, Mauritius March 4, 2021. Picture taken March 4, 2021. REUTERS/Christophe Van Der Perre

Arctic Sunrise ship crew are seen on aboard as the ship arrives at the Saya de Malha Bank within the Mascarene plateau, Mauritius March 4, 2021. Picture taken March 4, 2021. REUTERS/Christophe Van Der Perre

Arctic Sunrise ship crew members are seen on a rigid inflatable boat as they check for the depth in the Indian Ocean at the Saya de Malha Bank within the Mascarene plateau, Mauritius March 4, 2021. Picture taken March 4, 2021. REUTERS/Christophe Van Der Perre

Arctic Sunrise ship crew members prepare the Conductivity, Temperature, and Depth (CTD) instrument to conduct scientific research in the Indian Ocean at the Saya de Malha Bank within the Mascarene Plateau, Mauritius March 9, 2021. Picture taken March 9, 2021. REUTERS/Christophe Van Der Perre

Arctic Sunrise ship captain Fernando Romo Martin is seen aboard as the ship arrives at the Saya de Malha Bank within the Mascarene Plateau, Mauritius March 4, 2021. Picture taken March 4, 2021. REUTERS/Christophe Van Der Perre

Arctic Sunrise ship sails in the Indian Ocean waters at the Saya de Malha Bank within the Mascarene plateau, Mauritius March 14, 2021. Picture taken March 14, 2021. REUTERS/Christophe Van Der Perre

Greenpeace's Arctic Sunrise ship is seen at the Saya de Malha Bank within the Mascarene Plateau, Mauritius March 12, 2021. Picture taken with a drone March 12, 2021. REUTERS/Christophe Van Der Perre

Greenpeace's Arctic Sunrise ship is seen at the Saya de Malha Bank within the Mascarene Plateau, Mauritius March 12, 2021. Picture taken with a drone March 12, 2021. REUTERS/Christophe Van Der Perre

Greenpeace's Arctic Sunrise deck-hand Alessandro Montanari pulls back the hydrophone cable on the Arctic Sunrise at the Saya de Malha Bank within the Mascarene Plateau, Mauritius March 8, 2021. Picture taken March 8, 2021. REUTERS/Christophe Van Der Perre

Greenpeace's Arctic Sunrise ship is seen at the Saya de Malha Bank within the Mascarene Plateau, Mauritius March 12, 2021. Picture taken with a drone March 12, 2021. REUTERS/Christophe Van Der Perre

Lecturer in ecology at the University of Exeter, Dr. Kirsten Thompson conducts a sighting survey aboard the Greenpeace's Arctic Sunrise ship at the Saya de Malha Bank within the Mascarene Plateau, Mauritius March 10, 2021. Picture taken March 10, 2021. REUTERS/Christophe Van Der Perre

A sperm whale is seen swimming on the Indian Ocean surface during the Greenpeace's Arctic Sunrise expedition at the Saya de Malha Bank within the Mascarene plateau, Mauritius March 14, 2021. Picture taken with a drone March 14, 2021. REUTERS/Christophe Van Der Perre TPX IMAGES OF THE DAY

Lecturer in ecology at the University of Exeter, Dr. Kirsten Thompson takes notes during e-DNA sampling while on a rigid inflatable boat near the Greenpeace's Arctic Sunrise ship expedition at the Saya de Malha Bank within the Mascarene Plateau, Mauritius March 6, 2021. Picture taken March 6, 2021. REUTERS/Christophe Van Der Perre

Lukas Scherhag of Greenpeace's Arctic Sunrise ship is seen on a rigid inflatable boat next to the ship at the Saya de Malha Bank within the Mascarene Plateau, Mauritius March 12, 2021. Picture taken March 12, 2021. REUTERS/Christophe Van Der Perre

Marine biologist Tim Lewis conducts a sight survey aboard the Greenpeace Arctic Sunrise ship at the Saya de Malha Bank within the Mascarene Plateau, Mauritius March 5, 2021. Picture taken March 5, 2021. REUTERS/Christophe Van Der Perre

Greenpeace campaign lead Maria Jose Caballero and marine biologist Tim Lewis are seen on a sight survey aboard the Arctic Sunrise ship at the Saya de Malha Bank within the Mascarene Plateau, Mauritius March 11, 2021. Picture taken March 11, 2021. REUTERS/Christophe Van Der Perre

The bow of Greenpeace's Arctic Sunrise ship is seen at the Saya de Malha Bank within the Mascarene Plateau, Mauritius March 14, 2021. Picture taken March 14, 2021. REUTERS/Christophe Van Der Perre

Greenpeace campaign lead Maria Jose Caballero and marine biologist Tim Lewis are seen on a sight survey aboard the Arctic Sunrise ship at the Saya de Malha Bank within the Mascarene Plateau, Mauritius March 11, 2021. Picture taken March 11, 2021. REUTERS/Christophe Van Der Perre

Two sperm whales are seen swimming on the Indian Ocean surface during the Greenpeace's Arctic Sunrise expedition at the Saya de Malha Bank within the Mascarene Plateau, Mauritius March 14, 2021. Picture taken March 14, 2021. REUTERS/Christophe Van Der Perre

Marine biologist Tim Lewis deploys hydroplane into the Indian Ocean from the Greenpeace Arctic Sunrise ship at the Saya de Malha Bank within the Mascarene Plateau, Mauritius March 11, 2021. Picture taken March 11, 2021. REUTERS/Christophe Van Der Perre

Marine biologists prepare to get on a rigid inflatable boat to observe whales from aboard the Greenpeace Arctic Sunrise ship at the Saya de Malha Bank within the Mascarene Plateau, Mauritius March 14, 2021. Picture taken March 14, 2021. REUTERS/Christophe Van Der Perre

Marine biologist Tim Lewis is seen on a rigid inflatable boat near the Greenpeace's Arctic Sunrise ship expedition at the Saya de Malha Bank within the Mascarene Plateau, Mauritius March 14, 2021. Picture taken March 14, 2021. REUTERS/Christophe Van Der Perre

A juvenile red-footed booby flies next to the Greenpeace Arctic Sunrise ship at the Saya de Malha Bank within the Mascarene Plateau, Mauritius March 7, 2021. Picture taken March 7, 2021. REUTERS/Christophe Van Der Perre

A juvenile red-footed booby flies next to the Greenpeace Arctic Sunrise ship at the Saya de Malha Bank within the Mascarene plateau, Mauritius March 7, 2021. Picture taken March 7, 2021. REUTERS/Christophe Van Der Perre

Lecturer in ecology at the University of Exeter, Dr. Kirsten Thompson and Greenpeace team member Juliana Da Costa listen to whales aboard the Arctic Sunrise ship at the Saya de Malha Bank within the Mascarene Plateau, Mauritius March 12, 2021. Picture taken March 12, 2021. REUTERS/Christophe Van Der Perre

Lecturer in ecology at the University of Exeter, Dr. Kirsten Thompson and marine biologist Tim Lewis discuss after a sight survey aboard the Greenpeace Arctic Sunrise ship at the Saya de Malha Bank within the Mascarene Plateau, Mauritius March 5, 2021. Picture taken March 5, 2021. REUTERS/Christophe Van Der Perre

Lecturer in ecology at the University of Exeter, Dr. Kirsten Thompson and Greenpeace team member Juliana Da Costa listen to whales aboard the Arctic Sunrise ship at the Saya de Malha Bank within the Mascarene Plateau, Mauritius March 12, 2021. Picture taken March 12, 2021. REUTERS/Christophe Van Der Perre

The sun sets over the Indian Ocean waters as seen from aboard the Greenpeace Arctic Sunrise ship expedition at the Saya de Malha Bank within the Mascarene Plateau, Mauritius March 5, 2021. Picture taken March 5, 2021. REUTERS/Christophe Van Der Perre

Lecturer in ecology at the University of Exeter, Dr. Kirsten Thompson switches off pumps after e-DNA sampling while on a rigid inflatable boat near the Greenpeace's Arctic Sunrise ship expedition at the Saya de Malha Bank within the Mascarene Plateau, Mauritius March 6, 2021. Picture taken March 6, 2021. REUTERS/Christophe Van Der Perre

Lecturer in ecology at the University of Exeter, Dr. Kirsten Thompson sets a filter capsule for e-DNA sampling while on a rigid inflatable boat near the Greenpeace's Arctic Sunrise ship expedition at the Saya de Malha Bank within the Mascarene Plateau, Mauritius March 6, 2021. Picture taken March 6, 2021. REUTERS/Christophe Van Der Perre

Greenpeace's Arctic Sunrise ship sails at the Saya de Malha Bank within the Mascarene plateau, Mauritius March 6, 2021. Picture taken March 6, 2021. REUTERS/Christophe Van Der Perre

Mauritian scientist and climate change activist Shaama Sandooyea 24, is seen on the Arctic Sunrise helideck at the Saya de Malha Bank within the Mascarene plateau, Mauritius March 4, 2021. Picture taken March 4, 2021. REUTERS/Christophe Van Der Perre

Mauritian scientist and climate change activist Shaama Sandooyea 24, and arctic sunrise deckhand Lukas Scherhag look for whales through binoculars within the Mascarene plateau, Mauritius March 4, 2021. Picture taken March 4, 2021. REUTERS/Christophe Van Der Perre

Mauritian scientist and climate change activist Shaama Sandooyea 24, and a Greenpeace team member are seen on the Arctic Sunrise helideck at the Saya de Malha Bank within the Mascarene plateau, Mauritius March 4, 2021. Picture taken March 4, 2021. REUTERS/Christophe Van Der Perre

Mauritian scientist and climate change activist Shaama Sandooyea 24, pulls the hydrophone cable on the Arctic Sunrise at the Saya de Malha Bank within the Mascarene plateau, Mauritius March 5, 2021. Picture taken March 5, 2021. REUTERS/Christophe Van Der Perre

Mauritian scientist and climate change activist Shaama Sandooyea 24, pulls the hydrophone cable on the Arctic Sunrise at the Saya de Malha Bank within the Mascarene plateau, Mauritius March 5, 2021. Picture taken March 5, 2021. REUTERS/Christophe Van Der Perre

A hydrophone cable is seen trailing at the back of the Arctic Sunrise at the Saya de Malha Bank within the Mascarene plateau, Mauritius March 4, 2021. Picture taken March 4, 2021. REUTERS/Christophe Van Der Perre

Mauritian scientist and climate change activist Shaama Sandooyea 24, is seen on the Arctic Sunrise helideck at the Saya de Malha Bank within the Mascarene plateau, Mauritius March 4, 2021. Picture taken March 4, 2021. REUTERS/Christophe Van Der Perre

Greenpeace's Arctic Sunrise ship departs for its first expedition from Port of Victoria on Mahe Island, Seychelles March 2, 2021. REUTERS/Christophe Van Der Perre

A buoy is seen onboard the Greenpeace's Arctic Sunrise ship departing for its first expedition from Port of Victoria on Mahe Island, Seychelles March 2, 2021. REUTERS/Christophe Van Der Perre

Crew members tighten the gate of Greenpeace's Arctic Sunrise ship as it departs for its first expedition from Port of Victoria on Mahe Island, Seychelles March 2, 2021. REUTERS/Christophe Van Der Perre

A crew member releases the anchor of Greenpeace's Arctic Sunrise ship as it departs for its first expedition from Port of Victoria on Mahe Island, Seychelles March 2, 2021. REUTERS/Christophe Van Der Perre

Aerial view shows Greenpeace's Arctic Sunrise ship departing for its first expedition from the Port of Victoria on Mahe Island, Seychelles March 2, 2021. Picture taken with a drone. REUTERS/Christophe Van Der Perre

Aerial view shows Greenpeace's Arctic Sunrise ship departing for its first expedition from the Port of Victoria on Mahe Island, Seychelles March 2, 2021. Picture taken with a drone. REUTERS/Christophe Van Der Perre

Aerial view shows Greenpeace's Arctic Sunrise ship departing for its first expedition from the Port of Victoria on Mahe Island, Seychelles March 2, 2021. Picture taken with a drone. REUTERS/Christophe Van Der Perre

Aerial view shows Greenpeace's Arctic Sunrise ship departing for its first expedition from the Port of Victoria on Mahe Island, Seychelles March 2, 2021. Picture taken with a drone. REUTERS/Christophe Van Der Perre

Aerial view shows Greenpeace's Arctic Sunrise ship departing for its first expedition from the Port of Victoria on Mahe Island, Seychelles March 2, 2021. Picture taken with a drone. REUTERS/Christophe Van Der Perre

Santa Claus is pictured in his chamber behind a plexiglas screen at Santa Claus Village in the Arctic Circle near Rovaniemi, Finland October 13, 2020. Normally Santa's village in northern Finland is bustling with visitors in the months before Christmas but this year the pandemic has made them stay away, plunging the tourist attraction into crisis. Picture taken October 13, 2020. REUTERS/Attila Cser

Santa Claus is pictured in his chamber behind a plexiglas screen at Santa Claus Village in the Arctic Circle near Rovaniemi, Finland October 13, 2020. Normally Santa's village in northern Finland is bustling with visitors in the months before Christmas but this year the pandemic has made them stay away, plunging the tourist attraction into crisis. Picture taken October 13, 2020. REUTERS/Attila Cser

Santa Claus is pictured in his chamber behind a plexiglas screen at Santa Claus Village in the Arctic Circle near Rovaniemi, Finland October 13, 2020. Normally Santa's village in northern Finland is bustling with visitors in the months before Christmas but this year the pandemic has made them stay away, plunging the tourist attraction into crisis. Picture taken October 13, 2020. REUTERS/Attila Cser

Santa Claus is pictured in his chamber behind a plexiglas screen at Santa Claus Village in the Arctic Circle near Rovaniemi, Finland October 16, 2020. Normally Santa's village in northern Finland is bustling with visitors in the months before Christmas but this year the pandemic has made them stay away, plunging the tourist attraction into crisis. REUTERS/Attila Cser

Santa Claus talks to Edvin, his sister Elsa and their mother Anu behind a plexiglas screen in his chamber at Santa Claus Village in the Arctic Circle near Rovaniemi, Finland October 11, 2020. Normally Santa's village in northern Finland is bustling with visitors in the months before Christmas but this year the pandemic has made them stay away, plunging the tourist attraction into crisis. Picture taken October 11, 2020. REUTERS/Attila Cser

A general view shows the main square of the Santa Claus Village in the Arctic Circle near Rovaniemi, Finland October 11, 2020. Normally Santa's village in northern Finland is bustling with visitors in the months before Christmas but this year the pandemic has made them stay away, plunging the tourist attraction into crisis. Picture taken October 11, 2020. REUTERS/Attila Cser

A general view shows the main square of the Santa Claus Village in the Arctic Circle near Rovaniemi, Finland October 11, 2020. Normally Santa's village in northern Finland is bustling with visitors in the months before Christmas but this year the pandemic has made them stay away, plunging the tourist attraction into crisis. Picture taken October 11, 2020. REUTERS/Attila Cser

Icebreaker "RV Polarstern" of German Alfred Wegener Institute (AWI) returns after more than one-year Artic drift expedition to the harbor of Bremerhaven, Germany October 12, 2020. REUTERS/Fabian Bimmer

Icebreaker "RV Polarstern" of German Alfred Wegener Institute (AWI) returns after more than one-year Artic drift expedition to the harbor of Bremerhaven, Germany October 12, 2020. REUTERS/Fabian Bimmer

Icebreaker "RV Polarstern" of German Alfred Wegener Institute (AWI) returns after more than one-year Artic drift expedition to the harbor of Bremerhaven, Germany October 12, 2020. REUTERS/Fabian Bimmer

Icebreaker "RV Polarstern" of German Alfred Wegener Institute (AWI) returns after more than one-year Artic drift expedition to the harbor of Bremerhaven, Germany October 12, 2020. REUTERS/Fabian Bimmer

Icebreaker "RV Polarstern" of German Alfred Wegener Institute (AWI) returns after more than one-year Artic drift expedition to the harbor of Bremerhaven, Germany October 12, 2020. REUTERS/Fabian Bimmer