The 16-year-old Greta Thunberg , an activist of the Swedish struggle for sustainable development and against climate change, is known around the world for the Fridays for the Future, strikes of school climate began in 2018. The father, 50-year-old Greta, Svante Thunberg has told the Bbc of the past of the young environmentalist, explaining that she had struggled against the depression “for three to four years” before the strike of the school against climate change: “he Had stopped speaking, had stopped going to school”, it is “the worst nightmare of a parent,” to see a child stop to feed.