Keeper of the Day is climate keeper Greta Thunberg who is taking part in the youth climate strike in LA today.

Thunberg is the most prominent face of the youth climate movement that has swept the globe since she began launching school strikes in her home country last year. She traveled to the U.S. in a zero-emissions sailboat in August, delivering a powerful speech at the United Nations climate summit in September excoriating world leaders for their inaction and “empty words.”