Scientists for Future (S4F) is an international grassroots movement of scientists supporting the youth climate movement with scientific facts and materials. Originally starting with 28,000+ scientists supporting Fridays for Future in 2019, S4F provides evidence-based resources for activists, educators, policymakers, and the public. The organization offers fact sheets, educational materials, and scientific statements supporting climate action. Their resources include comprehensive climate facts, covering temperature rise, emission budgets, tipping points, biodiversity loss, and planetary boundaries, all designed to communicate reliable scientific data to various audiences.