At 9, Felix was inspired by Nobel Peace Prize laureate Wangari Maathai and called on his classmates to plant a million trees in every country in the world. The resulting Plant-for-the-Planet initiative became a worldwide student movement that is already implementing one of the global solutions to the climate crisis: Reforestation. In 2011 the students of Plant-for-the-Planet inherited the Billion Tree Campaign from their role model Wangari Maathai.

Today, Felix is doing his doctorate at ETH Zurich with a thesis on trees. For Felix, Trees are a time joker: “Trees help us to keep global warming below the critical 2°C limit without triggering the dangerous tipping points. Trees give us people a second chance, which we hope to seize now so that the climate crisis does not become a catastrophe.”