 A student holds a placard as people attend a climate change demonstration in London, Britain, September 20, 2019. REUTERS
 Ukrainian activists take part in a rally demanding actions on climate change, joining similar protests globally, three days ahead of the United Nation's emergency climate summit, in Kiev, Ukraine September 20, 2019. REUTERS
 Young activists take part in an environmental demonstration, part of the Global Climate Strike, in Warsaw, Poland September 20, 2019 REUTERS
 Environmental groups call for global climate strike action during a rally in Abuja, Nigeria September 20, 2019. REUTERS
 An activist takes part in a Global Climate Strike rally in Kolkata, India, September 20, 2019. REUTER
 Students hold placards as they take part in the Global Climate Strike of the Fridays for Future movement in Istanbul, Turkey, September 20, 2019. REUTERS
 Protestors march as part of the Global Climate Strike of the movement Fridays for Future in Vienna, Austria, September 20, 2019. REUTERS/
 Young people attend a Climate Strike rally, in Kabul, Afghanistan, Friday, Sept. 20, 2019 AP
 People take part in the Global Climate Strike of the movement Fridays for Future, in Berlin, Germany, September 20, 2019. REUTERS
 Students hold placards as they take part in the Fridays for Future climate change action protest in Paris, France, September 20, 2019. REUTERS
 Young activists take part in an environmental demonstration, part of the Global Climate Strike, in Poznan, Poland September 20, 2019 REUTERS
 Climate protesters demonstrate outside Norwegian parliament in Oslo, Friday, Sept. 20, 2019 REUTERS
 Environmental activists hold signs as they take part in the Climate strike protest calling for action on climate change, in Nairobi, Kenya, September 20, 2019. REUTER
 Young activists attend the Fridays for Future global climate strike in Stockholm, Sweden, September 20, 2019. REUTERS
 A demonstrator holds up a banner during a rally against climate change in Jakarta, Indonesia Friday, Sept. 20, 2019 AP
 Belgian students claim for urgent measures to combat climate change during a demonstration in central Brussels, Belgium, September 20, 2019. REUTERS
 Climate protesters demonstrate outside the local government legislature's offices in Johannesburg, South Africa, Friday, Sept. 20, 2019 AP
 People take part in the Global Climate Strike of the movement Fridays for Future, in Berlin, Germany, September 20, 2019. REUTERS
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