And youth activists in cities around the world have launched another one-day global climate strike that could rival a March 15 action that saw an estimated 1.6 million participants. Organizers, inspired by 16-year-old Swedish high school student Greta Thunberg, say they’re planning more than 1,350 separate strikes in every continent on Earth today—including two strikes in Antarctica. This is 19-year-old activist Marta Macías from Madrid, Spain.

Marta Macías: “It’s estimated we have 11 years before climate change is irreversible. And if we don’t take the necessary measures over these 11 years, we will end up without a planet. I want to defend my life on this planet, as well as the survival of my species and all of the other species that live on it.”