Meet Felix Finkbeiner, the 9-Year-Old German who started a children's tree campaign in 2007: Three years later, it planted its millionth tree

Nine-year-old Felix Finkbeiner stood in front of his fourth-grade class in Germany in January 2007. He wasn't initially trying to launch an international movement; rather, his assignment was to give a presentation about climate change.

Raccontata datimesofindia.indiatimes.com