This forum category explores the evolving health of our planet—air, water, soil, climate, and biodiversity—and how human activity shapes them. It welcomes evidence-based discussion on climate change, pollution, habitat loss, circular economy, and nature-based solutions, alongside policy, technology, and community action. Members can share news, research, local observations, and practical solutions, from decarbonization and conservation to sustainable design. Please keep posts constructive, cite sources where possible, and highlight real-world outcomes. The goal is to connect experts, advocates, and learners to exchange insights, challenge assumptions respectfully, and drive informed action for a more sustainable, resilient future.