A young boy takes part in a demonstration against climate change during a Friday Global Climate Strike in Parliament Square in London, Britain, 15 March 2019. Students across the world are taking part in a massive global student strike movement called #FridayForFuture which was sparked by Greta Thunberg of Sweden, a sixteen-year-old climate activist who has been protesting outside the Swedish parliament every Friday since August 2018.
EPA-EFE/NEIL HALL
