Explanation:

• Sweden's 16-year-old environmental activist Greta Thunberg shook world leaders with her speech at the United Nations, accusing world leaders of failing to take action on climate change. • During the summit, she said - "You have snatched away from our dreams, our childhood from our hollow statements,". • She said - the eyes of all future generations are upon you, and if you choose to fail us, I say, we will never forgive you. • On 23rd September the UN Climate Change Summit, 2019 was held in General Assembly Hall at UN Headquarters in New York.