Bringing together 18 immersive installations that ponder planetary co-existence, “Our Time on Earth” opens at the Barbican, London. To mitigate dread and paralysis felt in the face of compounding environmental crises, guest curators Caroline Till and Kate Franklin selected works that “carve out space to imagine a constructive way forward.” Case in point: Superflux’ Refuge for Resurgence (2021), a interspecies dinner table “where all living beings are considered equal.”