Greta Thunberg

Appalled by government apathy regarding climate change, 15-year-old Swedish activist Greta Thunberg started a protest in front of the her country's parliament building in August 2018. She criticized leaders for not doing enough to reduce carbon emissions and stood outside with the sign Skolstrejk f r klimatet (school strike for the climate). Within months, Thunberg's strikes and blunt speeches to world leaders and all adults ignited a global movement, inspiring millions of people to take action worldwide.