Teen climate activist Greta Thunberg wants to fix climate change and hopes for world peace, but has acknowledged she might be "very naive".
The 16-year-old Swede has carried her campaign against rising global temperatures to Rome, where she met Pope Francis, addressed Italian parliamentarians and joined a student protest yesterday in a city centre piazza.
"I think what I want for the future is just that we fix everything and that we fix the climate and the ecological crisis so that everyone lives in peace. I guess, very naive," she said.Strike
Ms Thunberg shot to fame last August with weekly sit-ins on the cobblestones in front of Stockholm's Parliament House with her "school strike for climate" sign.
Thousands of students around the world have since copied her, and youth organisations have launched school strikes involving students in more than 40 countries.
Her single-minded determination has won her fans of all ages, and she has also earned respect for living by her ideals.
"I do many small things just to change my habits, like I have become vegan, I have stopped flying, I have stopped shopping," she said at the protest.
She rejected suggestions she had stolen the limelight away from her cause, saying she did not like being a celebrity.
"I mean, I don't enjoy att- ention, but I enjoy making a difference," she said, adding that she wanted to make sure climate crisis was always the main focus of any trip.
Her blunt criticism of politicians has raised some eyebrows, but she warned that time was running out.
"When I am grown-up, when I am old enough to become a politician, it will be too late to act because we need to act now," she said.
"We can't wait for people like me to grow up and become the ones in charge."