Nature’s verdict The environmental imperative turned out to be the dominant leitmotiv, with 35% of participants echoing its call. At the heart of this environmental maelstrom, climate change and global warming stood out, attracting the attention of 17% of participants. Gravitating around this core are a series of closely related issues—pollution, energy production, destruction of our ecosystems, resource management, and overconsumption. Overall lessons learned from the question The youth talk about an impressive diversity of collective challenges