Greta Thunberg
Greta seated outside the Swedish Parliament in 2018
Greta at Finland’s largest ever climate demonstration, in October 2018.

Greta Thunberg

Greta, at age 16, appeared on the 2019 TIME 100 for her work in sparking a number of youth-led protests that call for action on climate change. Thunberg started in August 2018 (at age 15) by spending her school days outside the Swedish parliament holding up a sign saying “School strike for climate”. She has since then called out world governments for not acting quickly enough to stop the effects of climate change.

She said: “You say you love your children above all else, and yet you are stealing their future in front of their very eyes. Until you start focusing on what needs to be done rather than what is politically possible, there is no hope. We cannot solve a crisis without treating it as a crisis.”