Australian architect and filmmaker Liam Young premieres a new docu-fiction installation, The Great Endeavor (2023), at this year’s Venice Biennale. The piece offers glimpses of a longer forthcoming film that approaches planetary-scale carbon sequestration with radical optimism. Young and consulting scientist Holly Jean Buck turn humanity’s largest engineering project into an infrastructural imaginary, “chronicling the coordinated action to decolonise the atmosphere in our last great act of planetary transformation.”