Nature Climate Change, Published online: 18 May 2026; doi:10.1038/s41558-026-02658-1
The authors consider connectivity—specifically, the functional effectiveness of climate connectivity (FECC)—under climate change. Under high emissions (SSP5-8.5), FECC is projected to decline across 77% of the global land area by 2061–2080, risking ecological isolation and subsequent biodiversity loss.