We are pleased to invite you to **vis4climate**, the 4th workshop on Visualization and Climate Change. This half-day workshop will be held at IEEE VIS 2026 in Boston and aims to build a strong transdisciplinary community of researchers and practitioners working in visualization or climate change related areas. The workshop brings together researchers and practitioners from visualization, climate science, policy, and other fields that relate to climate change to discuss how visualization can support climate mitigation, adaptation, and communication. We welcome submissions across research, reflections, and demos/pictorials. Submission deadline: June 25 Location: Boston Time: November 9 to 13 Details: https://vis4climate.ivia.ch/workshop The plan is for a hybrid setup to increase accessibility and allow unconstrained participation. We look forward to receiving your submissions and to building a diverse community of researchers and practitioners interested in visualization for climate. The vis4climate Organizing Committee: Christina Humer, Andreas Hinterreiter, Aymeric Ferron, Marc Streit, Menna El-Assady, Luiz A. Morais, Georgia Panagiotidou, Benjamin Bach, and Fanny Chevalier