People, wearing protective masks walk past Greenpeace activists holding a poster reading "Return to the future" during a demonstration in front of Sofia University, Bulgaria, May 18, 2020. The aim of the demonstration is to push for greener policies as part of the recovery from the COVID-19 crisis. REUTERS/Stoyan Nenov

Environmental activists hold banners as Greenpeace has called on Poland's conservative government to focus on its citizens' wellbeing and the environment rather than on the GDP growth as the coal-reliant economy looks to unfreeze after the coronavirus disease (COVID-19) lockdown in front of the Polish Prime Minister Chancellery in Warsaw, Poland April 22, 2020. REUTERS/Kacper Pempel

An environmental activist holds a banner as Greenpeace has called on Poland's conservative government to focus on its citizens' wellbeing and the environment rather than on the GDP growth as the coal-reliant economy looks to unfreeze after the coronavirus disease (COVID-19) lockdown in front of the Polish Prime Minister Chancellery in Warsaw, Poland April 22, 2020. REUTERS/Kacper Pempel

An environmental activist holds a banner as Greenpeace has called on Poland's conservative government to focus on its citizens' wellbeing and the environment rather than on the GDP growth as the coal-reliant economy looks to unfreeze after the coronavirus disease (COVID-19) lockdown in front of the Prime Minister Chancellery in Warsaw, Poland April 22, 2020. REUTERS/Kacper Pempel

An environmental activist holds a banner as Greenpeace has called on Poland's conservative government to focus on its citizens' wellbeing and the environment rather than on the GDP growth as the coal-reliant economy looks to unfreeze after the coronavirus disease (COVID-19) lockdown, in front of the Polish Prime Minister Chancellery in Warsaw, Poland April 22, 2020. REUTERS/Kacper Pempel

Environmental activists hold banners as Greenpeace has called on Poland's conservative government to focus on its citizens' wellbeing and the environment rather than on the GDP growth as the coal-reliant economy looks to unfreeze after the coronavirus disease (COVID-19) lockdown in front of the Polish Prime Minister Chancellery in Warsaw, Poland April 22, 2020. REUTERS/Kacper Pempel

Greenpeace activist Serkan Dadak plays a musical instrument aboard the Esperanza ship near Drake Passage, Antarctica, February 9, 2020. Picture taken February 9, 2020. REUTERS/Ueslei Marcelino

Greenpeace activist Kaitlin Grable rests on board of the Esperanza ship near Lemaire Channel, Antarctica, February 5, 2020. Picture taken February 5, 2020. REUTERS/Ueslei Marcelino

Greenpeace activist Marcelo Legname floats with a boat at Snow Island, Antarctica, January 30, 2020. Picture taken January 30, 2020. REUTERS/Ueslei Marcelino

Usnea Granger, a Greenpeace activist, does a handstand as she exercises on board the Esperanza Ship near Drake Passage, Antarctica, February 9, 2020. REUTERS/Ueslei Marcelino SEARCH "ANTARCTICA PENGUINS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

Usnea Granger, a Greenpeace activist, drives a boat near Quentin Point, Anvers Island, Antarctica, February 4, 2020. REUTERS/Ueslei Marcelino SEARCH "ANTARCTICA PENGUINS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

Greenpeace activists take a walk along the snow during a day off at Orne Harbor, Antarctica, February 6, 2020. REUTERS/Ueslei Marcelino SEARCH "ANTARCTICA PENGUINS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

Hanna Jauhiainen, a Greenpeace activist, looks outside the window from aboard the Esperanza ship, near Quentin Point, Anvers Island, Antarctica, February 4, 2020. REUTERS/Ueslei Marcelino SEARCH "ANTARCTICA PENGUINS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

Usnea Granger, a Greenpeace activist, braids her teammates Julia Zanolli's hair, aboard the Esperanza ship, near Lemaire Channel, Antarctica, February 5, 2020. REUTERS/Ueslei Marcelino SEARCH "ANTARCTICA PENGUINS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

Greenpeace activists play in the snow during a day off at Orne Harbor, Antarctica, February 6, 2020. REUTERS/Ueslei Marcelino SEARCH "ANTARCTICA PENGUINS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

Usnea Granger, a Greenpeace activist, puts on outerwear, aboard the Esperanza ship near Quentin Point, Anvers Island, Antarctica, February 4, 2020. REUTERS/Ueslei Marcelino SEARCH "ANTARCTICA PENGUINS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

Climate change activists from Greenpeace, hold up a sign reading 'protect the oceans', in front of rubbish collected from the islands of Antarctica, on the Esperanza Ship, close to Orne Harbor, Antarctica, February 6, 2020. Picture taken February 6, 2020. Reuters/Ueslei Marcelino

A Greenpeace ice sculpture of penguins is seen during a protest by students against climate change in central Brussels, Belgium February 7, 2020. REUTERS/Francois Lenoir

A Greenpeace ice sculpture of penguins is seen during a protest by students against climate change in central Brussels, Belgium February 7, 2020. REUTERS/Francois Lenoir

Police officers remove a Greenpeace climate activist near the entrance to BP's head office in London, Britain February 5, 2020. REUTERS/Toby Melville

Solar panels, that were used in a Greenpeace protest are removed from outside BP's head office in London, Britain February 5, 2020. REUTERS/Toby Melville

Greenpeace climate activists attempt to block the entrance to BP's head office in London, Britain February 5, 2020. REUTERS/Toby Melville

Solar panels, that were used in a Greenpeace protest are removed from outside BP's head office in London, Britain February 5, 2020. REUTERS/Toby Melville

Greenpeace climate activist looks on as she is being removed by police officers near the entrance to BP's head office in London, Britain February 5, 2020. REUTERS/Toby Melville

Greenpeace climate activist looks on as he is being removed by police officers near the entrance to BP's head office in London, Britain February 5, 2020. REUTERS/Toby Melville

Greenpeace climate activists sit with their hands glued to a mock-up oil drum near the entrance to BP's head office in London, Britain February 5, 2020. REUTERS/Toby Melville

Greenpeace climate activist has his hands glued to a mock-up oil drum near the entrance to BP's head office in London, Britain February 5, 2020. REUTERS/Toby Melville

Greenpeace climate activists attempt to block the entrance to BP's head office in London, Britain February 5, 2020. REUTERS/Toby Melville

Greenpeace activists put up a banner reading "Bush fires start here - stop Adani" below the company logo on the headquarters of German engineering group Siemens in Munich, Germany, February 4, 2020. REUTERS/Andreas Gebert

Greenpeace activists put up a banner reading "Bush fires start here - stop Adani" below the company logo on the headquarters of German engineering group Siemens in Munich, Germany, February 4, 2020. REUTERS/Andreas Gebert

Greenpeace activists put up a banner reading "Bush fires start here - stop Adani" below the company logo on the headquarters of German engineering group Siemens in Munich, Germany, February 4, 2020. REUTERS/Andreas Gebert

Greenpeace activists put up a banner reading "Bush fires start here - stop Adani" below the company logo on the headquarters of German engineering group Siemens in Munich, Germany, February 4, 2020. REUTERS/Andreas Gebert

Greenpeace activists climb on the roof of the headquarters of Siemens in Munich, Germany, February 4, 2020, after Siemens said it remained committed to a controversial coal mining project in Australia's outback. REUTERS/Andreas Gebert

Greenpeace activists climb on the roof of the headquarters of Siemens in Munich, Germany, February 4, 2020, after Siemens said it remained committed to a controversial coal mining project in Australia's outback. REUTERS/Andreas Gebert

Greenpeace activists climb on the roof of the headquarters of Siemens in Munich, Germany, February 4, 2020, after Siemens said it remained committed to a controversial coal mining project in Australia's outback. REUTERS/Andreas Gebert

Greenpeace activists climb on the roof of the headquarters of Siemens in Munich, Germany, February 4, 2020, after Siemens said it remained committed to a controversial coal mining project in Australia's outback. REUTERS/Andreas Gebert

Greenpeace activists climb on the roof of the headquarters of Siemens in Munich, Germany, February 4, 2020, after Siemens said it remained committed to a controversial coal mining project in Australia's outback. REUTERS/Andreas Gebert

Greenpeace activists climb on the roof of the headquarters of Siemens in Munich, Germany, February 4, 2020, after Siemens said it remained committed to a controversial coal mining project in Australia's outback. REUTERS/Andreas Gebert

Greenpeace activists climb on the roof of the headquarters of Siemens in Munich, Germany, February 4, 2020, after Siemens said it remained committed to a controversial coal mining project in Australia's outback. REUTERS/Andreas Gebert

Greenpeace activists climb on the roof of the headquarters of Siemens in Munich, Germany, February 4, 2020, after Siemens said it remained committed to a controversial coal mining project in Australia's outback. REUTERS/Andreas Gebert

Greenpeace activists climb on the roof of the headquarters of Siemens in Munich, Germany, February 4, 2020, after Siemens said it remained committed to a controversial coal mining project in Australia's outback. REUTERS/Andreas Gebert

Greenpeace demonstrators protest in front of a BlackRock office in Frankfurt, Germany, February 3, 2020. REUTERS/Ralph Orlowski

Greenpeace demonstrators protest in front of a BlackRock office in Frankfurt, Germany, February 3, 2020. REUTERS/Ralph Orlowski

Greenpeace demonstrators protest in front of a BlackRock office in Frankfurt, Germany, February 3, 2020. REUTERS/Ralph Orlowski

Greenpeace demonstrators protest in front of a BlackRock office in Frankfurt, Germany, February 3, 2020. REUTERS/Ralph Orlowski

Greenpeace demonstrators protest in front of a BlackRock office in Frankfurt, Germany, February 3, 2020. REUTERS/Ralph Orlowski

A Greenpeace demonstrator holds a placard reading "BlackRock: Your assets are on fire !" during a protest in front of a BlackRock office in Frankfurt, Germany, February 3, 2020. REUTERS/Ralph Orlowski

Greenpeace demonstrators protest in front of a BlackRock office in Frankfurt, Germany, February 3, 2020. REUTERS/Ralph Orlowski

A placard reading "BlackRock: Your assets are on fire!" is pictured during a Greenpeace demonstration in front of a BlackRock office in Frankfurt, Germany, February 3, 2020. REUTERS/Ralph Orlowski

A placard is pictured during a Greenpeace demonstration in front of a BlackRock office in Frankfurt, Germany, February 3, 2020. REUTERS/Ralph Orlowski

Anti coal activist of Greenpeace, Lisa Goeldner, poses for a picture after giving a statement during the news conference of Germany's Economy Minister presenting the annual economic report and coal exit law in Berlin, Germany January 29, 2020. REUTERS/Michele Tantussi

Anti Coal activist of Greenpeace, Lisa Goeldner, Momo, activist of Hambi, Alle Doerfer bleiben, David Dresen, Ende Gelaende, Kathrin Henneberger, Fridays For Future, Quang Paasch, Gruene Liga, Rene Schuster, Campact, Lara Eckstein pose for a picture after giving a statement during the news conference of Germany's Economy Minister presenting the annual economic report and coal exit law in Berlin, Germany January 29, 2020. REUTERS/Michele Tantussi

Activists of Alle Doerfer bleiben, David Dresen, Campact, Lara Eckstein, Ende Gelaende, Kathrin Henneberger, Fridays For Future, Quang Paasch, Greenpeace, Lisa Goeldner, Gruene Liga, Rene Schuster and Momo, activist of Hambi, give a statement during the news conference of Germany's Economy Minister presenting the annual economic report and coal exit law in Berlin, Germany January 29, 2020. REUTERS/Michele Tantussi

Greenpeace, Fridays for Future and other environmental organisations protest against the commissioning of the North Rhine Westphalian stone coal-fired power plant "Datteln 4" in Datteln, Germany, January 24, 2020. The placard reads: "Datteln 4 - no, thank you - Exit Coal immediately ". REUTERS/Wolfgang Rattay

Greenpeace, Fridays for Future and other environmental organisations protest against the commissioning of the North Rhine Westphalian stone coal-fired power plant "Datteln 4" in Datteln, Germany, January 24, 2020. The placard reads "Datteln 4 no Thank you - Exit Coal immediately ". REUTERS/Wolfgang Rattay

Greenpeace, Fridays for Future and other environmental organisations protest against the commissioning of the North Rhine Westphalian stone coal-fired power plant "Datteln 4" in Datteln, Germany, January 24, 2020. The placard reads: "Datteln 4 not with me". REUTERS/Wolfgang Rattay

Greenpeace, Fridays for Future and other environmental organisations protest against the commissioning of the North Rhine Westphalian stone coal-fired power plant "Datteln 4" in Datteln, Germany, January 24, 2020. The placard reads: "Datteln 4 - no thank you - Exit Coal Immediately". REUTERS/Wolfgang Rattay

People hold a banner reading "Datteln 4 not with me" as Greenpeace, Fridays for Future and other environmental organisations protest against the commissioning of the North Rhine Westphalian stone coal-fired power plant Datteln 4 in Datteln, Germany, January 24, 2020. REUTERS/Wolfgang Rattay

A man holds a placard reading "Coal is poisonous for the mankind and climate" as Greenpeace, Fridays for Future and other environmental organisations protest against the commissioning of the North Rhine Westphalian stone coal-fired power plant Datteln 4 in Datteln, Germany, January 24, 2020. REUTERS/Wolfgang Rattay

Greenpeace, Fridays for Future and other environmental organisations protest against the commissioning of the North Rhine Westphalian stone coal-fired power plant Datteln 4 in Datteln, Germany, January 24, 2020. The placard reads "Stop Datteln 4". REUTERS/Wolfgang Rattay