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Carbon offset funds provide substantial opportunities for protection and restoration of native ecosystems, with corresponding gains for biodiversity and reductions in atmospheric carbon. However, biodiversity could be disadvantaged if not properly accounted for, particularly under climate change, where high carbon gains do not coincide spatially with biodiversity priorities. While globally there is congruence for species richness and carbon stocks, adequate conservation needs to incorporate more refined measures of biodiversity – and consideration of the impact of future climate change. We investigated the spatial trade-off for carbon and biodiversity priorities in north-eastern Australia based on current and projected climate, using the Zonation prioritisation software. By iteratively weighting carbon against biodiversity we found that prioritising land based on biodiversity value (for 697 vertebrates) included priority …