Greta Thunberg Named br 'TIME' Person of the Year.br The 16-year-old Swedish br climate change activist br is the youngest person br to receive the title.br 'TIME' editor-in-chief br Edward Felsenthal br revealed the news on the br ‘Today’ show Wednesday.br She was a solo protestor with a hand-painted sign 14 months ago. She's now led millions of people around the world, 150 countries, to act on behalf of the planet. , Edward Felsenthal, via ‘Today’.br 'TIME' selects their winners based on “who influenced br the years' events most, for better or for worse.”.