Students stage global strikes to pressure U.N. climate summit

A climate change activist takes part in a protest against climate change consequences at Lumpini Park in Bangkok, Thailand November 29, 2019. REUTERS/Chalinee Thirasupa

Congolese band members participate in the climate protest in the streets of Kinshasa, Democratic Republic of the Congo November 29. REUTERS/Hereward Holland

Activists attend an environmental demonstration, part of the Global Climate Strike by "Fridays for Future" movement, calling for global strikes on Black Friday, a week ahead of the United Nations' COP25 Climate Change Summit, in Warsaw, Poland...more

Youth for Climate activists demonstrate during a day of protest to denounce the annual Black Friday shopping frenzy in Marseille, France, November 29. REUTERS/Jean-Paul Pelissier

A person holds a placard during a protest to demand action on climate change as part of the Global Climate Strike of the movement Fridays for Future, in Lisbon, Portugal, November 29. REUTERS/Rafael Marchante

People stage a die-in during a Global Climate Strike rally calling for urgent measures to combat climate change, in New Delhi, India, November 29. REUTERS/Anushree Fadnavis

Youth for Climate activists demonstrate during a day of protest to denounce the annual Black Friday shopping frenzy in Marseille, France, November 29. REUTERS/Jean-Paul Pelissier

Israelis take part in the "Fridays for Future" global strike against climate change, in Tel Aviv, Israel November 29. REUTERS/Corinna Kern

Israelis take part in the "Fridays for Future" global strike against climate change, in Tel Aviv, Israel November 29. REUTERS/Corinna Kern

Israelis take part in the "Fridays for Future" global strike against climate change, in Tel Aviv, Israel November 29. REUTERS/Corinna Kern

Israelis take part in the "Fridays for Future" global strike against climate change, in Tel Aviv, Israel November 29. REUTERS/Corinna Kern

A protester carries a sign that reads "Don't touch Virunga" during the climate protest in the streets of Kinshasa, Democratic Republic of the Congo November 29. REUTERS/Hereward Holland

People attend the Global Climate Strike of the movement Fridays for Future, in Cologne, Germany, November 29. REUTERS/Thilo Schmuelgen

Students and activists hold placards with messages as they participate in a Global Climate Strike rally calling for urgent measures to combat climate change, in New Delhi, India, November 29. REUTERS/Anushree Fadnavis

A climate change activist lies on the ground as they stage a 'drop dead' flashmob protest against climate change consequences at Lumpini Park in Bangkok, Thailand November 29. REUTERS/Chalinee Thirasupa

A climate change activist holds a banner as she stages a 'drop dead' flashmob protest against climate change consequences at Lumpini Park in Bangkok, Thailand November 29. REUTERS/Chalinee Thirasupa

A child holds a placard during a 'drop dead' flashmob protest against climate change consequences at Lumpini Park in Bangkok, Thailand November 29. REUTERS/Chalinee Thirasupa

People shout slogans during a protest to demand action on climate change as part of the Global Climate Strike of the movement Fridays for Future, in Lisbon, Portugal, November 29. REUTERS/Rafael Marchante

People take part in a "Fridays for Future" march calling for urgent measures to combat climate change, in Mumbai, India, November 29. REUTERS/Hemanshi Kamani

Schoolchildren carry banners during a march organized to coincide with the Fridays for Future and the global strike to stop global warming ahead of COP25 next mont, in Yaounde, in this handout picture obtained by Reuters on November 29, Cameroon....more

People take part in a "Fridays for Future" march calling for urgent measures to combat climate change, in Mumbai, India, November 29. REUTERS/Hemanshi Kamani

Youth for Climate activists demonstrate inside the Westfield Les 4 Temps shopping center during a day of protest to denounce the annual Black Friday shopping frenzy at La Defense business and financial district in Puteaux near Paris, France, November...more

Climate change activists lie on the floor as they stage a 'drop dead' flashmob protest against climate change consequences at Lumpini Park in Bangkok, Thailand November 29. REUTERS/Chalinee Thirasupa

Students and activists attend a protest march to call for action against climate change, in Vienna, Austria, November 29. REUTERS/Leonhard Foeger

Studens holding placards attend the Global Climate Strike of the movement Fridays for Future, in Hamburg, Germany, November 29. The placard reads, "Stop climate crisis, stop GroKo" REUTERS/Fabian Bimmer

Activists hold a banner during a protest march to call for action against climate change, in Vienna, Austria, November 29. REUTERS/Leonhard Foeger

High school students hold placards and shout slogans during a protest to demand action on climate change as part of the Global Climate Strike of the movement Fridays for Future in Athens, Greece, November 29. REUTERS/Alkis Konstantinidis

Inflated balloons are seen during the Global Climate Strike of the movement Fridays for Future, in Cologne, Germany, November 29. REUTERS/Thilo Schmuelgen

Protesters holding placards take part in the Global Climate Strike of the movement Fridays for Future, in Berlin, Germany, November 29. REUTERS/Hannibal Hanschke

Placards lay on the ground during a protest to demand action on climate change as part of the Global Climate Strike of the movement Fridays for Future, in Lisbon, Portugal, November 29. REUTERS/Rafael Marchante