Greta Thunberg is a Swedish environmental activist renowned for her efforts to combat climate change. She gained international recognition by initiating the "Fridays for Future" movement, encouraging students worldwide to strike from school to demand stronger climate action from political leaders. Thunberg has addressed global forums, including the United Nations Climate Change Conference, emphasizing the urgent need for environmental reforms.

Greta Thunberg was born and raised in Stockholm, Sweden, to parents Malena Ernman, an opera singer, and Svante Thunberg, an actor. She first learned about climate change at the age of eight and became deeply concerned about the lack of substantial action to address the crisis. This concern led her to experience depression, during which she was diagnosed with Asperger syndrome, obsessive-compulsive disorder (OCD), and selective mutism. Despite these challenges, Thunberg persuaded her family to adopt a more environmentally friendly lifestyle, including becoming vegan and reducing their carbon footprint by avoiding air travel.

In August 2018, at the age of 15, Thunberg began protesting outside the Swedish Parliament every Friday during school hours, holding a sign that read "Skolstrejk för klimatet" (School Strike for Climate). Her solitary protest soon attracted international attention, inspiring students and activists around the world to join her cause, leading to the formation of the "Fridays for Future" movement. Thunberg's unwavering commitment and compelling speeches have made her a leading voice in the global climate movement, urging policymakers to take immediate and concrete actions to mitigate climate change.