"Since our leaders are behaving like children, we will have to take the responsibility they should have taken long ago." Greta made this speech at the 2018 United Nations Climate Change Conference, which was held in Poland. At the summit, she accused world leaders of causing problems for future generations by not doing enough about climate change. "Why should I be studying for a future that soon may be no more, when no one is doing anything to save that future?" she said.