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Greta Thunberg
  • (centre) Environmental activist Greta Thunberg interacts with other youngsters during a Bristol Youth Strike 4 Climate protest in Bristol. Picture date: Friday February 28, 2020. Photo credit should read: EMPICS/EMPICS Entertainment
  • Environmental activist Greta Thunberg during a Bristol Youth Strike 4 Climate protest in Bristol. Picture date: Friday February 28, 2020. Photo credit should read: EMPICS/EMPICS Entertainment
  • The mural of environmental activist Greta Thunberg painted on a wall of the Tobacco Factory near Ashton Gate in Bristol. PA Photo. Picture date: Friday February 28, 2020. Photo credit should read: Andrew Matthews/PA Wire
  • File photo dated 14/08/19 of climate activist Greta Thunberg, who will be followed by documentary cameras for a new TV series.
  • The Swedish activist Greta Thunberg speaks in Piazza Castello during the Friday for future in Turin, Italy on December 13, 2019. (Photo by Alberto Gandolfo/Pacific Press/Sipa USA)
  • Greta Thunberg during the ninth day oif COP25 Chile-Madrid at IFEMA Madrid on 11 Dec 2019.(ALTERPHOTOS/Manu R.B./Sipa USA)
  • Swedish teen climate activist Greta Thunberg looks on during a march and rally at the Youth Climate Strike in Los Angeles, California, U.S., November 1, 2019. REUTERS/Mike Blake??
  • Andres Petreselli paints a mural on the side of a building depicting Swedish teen climate activist Greta Thunberg, Friday, Nov. 8, 2019, in San Francisco. (AP Photo/Ben Margot)
  • Teenage Swedish activist Greta Thunberg is one of the best-known members of Generation Z (AFP Photo/Frederic J. BROWN)
  • Swedish teenage climate activist Greta Thunberg attends a news conference at the SMILE meeting (Summer Meeting In Lausanne Europe), with other young climate strike activists from 37 European countries of the FridaysforFuture movement in Lausanne, Switzerland, August 5, 2019. REUTERS/Denis Balibouse
  • Photo credit: twitter.com/Schwarzenegger
  • "Fridays for Future" activist Greta Thunberg leaves after speaking at the Senate in Rome, Italy April 18, 2019. REUTERS/Remo Casilli
  • 16-year-old Swedish Climate activist Greta Thunberg attends the 2019 United Nations Climate Action Summit at U.N. headquarters in New York City, New York, U.S., September 23, 2019. REUTERS/Yana Paskova
  • 16-year-old Swedish Climate activist Greta Thunberg speaks at the 2019 United Nations Climate Action Summit at U.N. headquarters in New York City, New York, U.S., September 23, 2019.
  • Swedish environmental activist Greta Thunberg appears at the Youth Climate Summit at United Nations HQ in the Manhattan borough of New York, New York, U.S., September 21, 2019. REUTERS/Carlo Allegri
  • Secretary-General of the United Nations Antonio Guterres shakes hands with Swedish environmental activist Greta Thunberg at the Youth Climate Summit at United Nations Headquarters in the Manhattan borough of New York, New York, U.S., September 21, 2019. REUTERS/Carlo Allegri
  • Sixteen year-old Swedish climate activist Greta Thunberg speaks to a large crowd of demonstrators at the Global Climate Strike in lower Manhattan in New York, U.S., September 20, 2019. REUTERS/Lucas Jackson
  • Sixteen year-old Swedish climate activist Greta Thunberg speaks to a large crowd of demonstrators at the Global Climate Strike in lower Manhattan in New York, U.S., September 20, 2019. REUTERS/Lucas Jackson TPX IMAGES OF THE DAY
  • Sixteen year-old Swedish climate activist Greta Thunberg departs after attending a demonstration at the U.S. Supreme Court in Washington, U.S., September 18, 2019. REUTERS/Kevin Lamarque
  • Swedish 16-year-old youth climate activist Greta Thunber sits on the side amongst other youth climate activists at a news conference about the Green New Deal hosted by U.S. Senator Ed Markey (D-MA) on the Northeast lawn in front of the U.S. Capitol in Washington, U.S., September 17, 2019. REUTERS/Sarah Silbiger TPX IMAGES OF THE DAY
  • Swedish activist Greta Thunberg participates in a youth climate change protest in front of the United Nations Headquarters in New York City, New York, U.S.,September 6, 2019. REUTERS/Shannon Stapleton
  • Swedish 16-year-old activist Greta Thunberg completes her trans-Atlantic crossing in order to attend a United Nations summit on climate change in New York, U.S., August 28, 2019. REUTERS/Andrew Kelly
  • Swedish 16-year-old activist Greta Thunberg sails on the Malizia II racing yacht in New York Harbor as she nears the completion of her trans-Atlantic crossing in order to attend a United Nations summit on climate change in New York, U.S., August 28, 2019. REUTERS/Mike Segar
  • Swedish 16-year-old activist Greta Thunberg sails on the Malizia II racing yacht in New York Harbor as she nears the completion of her trans-Atlantic crossing in order to attend a United Nations summit on climate change in New York, U.S., August 28, 2019. REUTERS/Mike Segar TPX IMAGES OF THE DAY
  • Swedish climate activist Greta Thunberg holding signage reading "School strike for climate" sits aboard Team Malizia yacht that will transport Thunberg across the Atlantic for the UN Climate Action Conference in this recent undated photo released August 16, 2019. Team Malizia/Handout via REUTERS THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. MANDATORY CREDIT.
  • Greta Thunberg, Swedish "Fridays for Future" climate activist, stands next to activists and a masked inhabitant of an illegal tree house in the Hambach Forest that is supposed to be chopped away for the nearby open-cast brown coal minr of German utility RWE, west of Cologne, Germany, August 10, 2019. REUTERS/Wolfgang Rattay
  • Greta Thunberg, Swedish "Fridays for Future" climate activist, stands next to climbing equipment that hangs from an illegal tree house in the Hambach Forest that is supposed to be chopped away for the nearby open-cast brown coal mine of German utility RWE, west of Cologne, Germany, August 10, 2019. REUTERS/Wolfgang Rattay
  • Swedish environmental activist Greta Thunberg, Adelaide Charlier and Alicia Arquetoux, French activists from the Youth for Climate movement, attend the questions to the government session at the National Assembly in Paris, France, July 23, 2019. REUTERS/Philippe Wojazer
  • Swedish environmental activist Greta Thunberg leaves after a debate with French parliament members at the National Assembly in Paris, France, July 23, 2019. REUTERS/Philippe Wojazer
  • Swedish environmental activist Greta Thunberg attends "Fridays for Future" protest, claiming for urgent measures to combat climate change, in Berlin, Germany, July 19, 2019. REUTERS/Fabrizio Bensch
  • Swedish environmental activist Greta Thunberg attends "Fridays for Future" protest, claiming for urgent measures to combat climate change, in Berlin, Germany, July 19, 2019. REUTERS/Fabrizio Bensch
  • Revellers walk past a Greta Thunberg mural at Glastonbury Festival at Worthy farm in Somerset, Britain June 26, 2019. REUTERS/Henry Nicholls
  • Greta Thunberg attends a demonstration calling for action on climate change, during the "Fridays for Future" school strike in Vienna, Austria May 31, 2019. REUTERS/Leonhard Foeger
  • Former California Governor Arnold Schwarzenegger reacts next to Swedish climate activist Greta Thunberg and Austrian President Alexander Van der Bellen during the R20 Austrian World Summit in Vienna, Austria, May 28, 2019. REUTERS/Lisi Niesner
  • Swedish environmental activist Greta Thunberg looks on next to the former leader of Britain's opposition Labour Party Ed Miliband at the House of Commons as guest of Caroline Lucas, in London, Britain April 23, 2019. REUTERS/Toby Melville
  • Swedish environmental activist Greta Thunberg joins Italian students to demand action on climate change, in Piazza del Popolo, Rome, Italy April 19, 2019. REUTERS/Yara Nardi
  • Swedish environmental activist Greta Thunberg speaks to the media, as she joins Italian students to demand action on climate change, in Piazza del Popolo, Rome, Italy April 19, 2019. REUTERS/Yara Nardi
  • Climate activist Swedish teenager Greta Thunberg meets Pope Francis during the weekly audience at Saint Peter's Square at the Vatican, April 17, 2019. Vatican Media/Handout via REUTERS THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY.
  • Swedish environmental activist Greta Thunberg cries at the end of her a speech to the environment committee of the European Parliament in Strasbourg, April 16, 2019. REUTERS/Vincent Kessler
  • Teen climate activist Greta Thunberg leads student walk out in NC, says our planet’s future is at risk
  • Greta Thunberg speaks at a youth climate in Charlotte, N.C., on Friday. (Yahoo News Video)
  • Greta Thunberg to guest edit BBC Radio 4's Today programme. The Swedish activist will interview leading figures in the fight against global heating
  • ROME, ITALY - SEPTEMBER 27: People take part in the climate march 'Fridays for Future, the Global Climate Strike for the planet, launched by 16-year-old Greta Thunberg who has become a symbol of the fight against climate change, to demand for urgent measures and concrete action to combat climate change, global warming on September 27, 2019 in Rome, Italy. (Photo by Stefano Montesi - Corbis/ Getty Images)
  • Swedish climate activist Greta Thunberg, 16, arrives in the US after a 15-day journey crossing the Atlantic in the Malizia II, a zero-carbon yacht, on August 28, 2019 in New York. - "Land!! The lights of Long Island and New York City ahead," she tweeted early Wednesday. She later wrote on Twitter that her yacht had anchored off the entertainment district of Coney Island in Brooklyn to clear customs and immigration. (Photo by Kena Betancur / AFP) (Photo credit should read KENA BETANCUR/AFP via Getty Images)