Greta Thunberg turned 18 in January, but she’s already made peace with her future: While most college students will change their concentrations multiple times, the Swedish high school student says climate change activism will be her life’s mission.

“In a perfect world, there wouldn’t need to be a climate activist, but unfortunately, there will probably still be a need for climate activists for quite some time,” she said. “I think I will be doing this for as long as there is a need for people to do this.”

Thunberg’s activism and message is brought to life in a new docuseries, Greta Thunberg: details ⇒