Greta Thunberg is a Swedish environmental activist known for her efforts to combat climate change. She gained international recognition after starting the 'Fridays for Future' movement, where she encouraged students to skip school to protest for stronger climate action. Her passionate speeches at global forums have inspired millions to join the fight against climate change. Thunberg's activism began when she was just 15 years old, and she has since become a prominent figure in the climate movement. She emphasizes the urgency of addressing climate issues and holds world leaders accountable for their inaction. Her work has sparked a global youth movement focused on sustainability and environmental justice.