The leader who used their platform to advocate for environmental issues is Greta Thunberg. Starting with a school strike for climate action in August 2018, Thunberg gained international attention, inspiring a global youth movement. Her speeches at major events, including the United Nations Climate Change Conference, emphasize the urgency of addressing climate change and holding political leaders accountable. Thunberg's candid approach and compelling message resonate across diverse audiences, making her a powerful symbol of environmental activism. Her work has significantly raised awareness about the climate crisis and mobilized millions to advocate for sustainable practices.