Fig. 5: Opportunity for expanding the protected area estate.
From: Protected-area targets could be undermined by climate change-driven shifts in ecoregions and biomes

For each ecoregion, the area needed to achieve a 30% area-based protection target (after accounting for existing PAs) was compared against the remaining area within the ecoregion that is currently unprotected, intact (low human modification), and projected to remain climatically stable. A value of 100% means that the remaining unprotected, intact, and stable area is equal to the area needed to achieve the 30% target. Values below 100% imply that the target area exceeds the area that meets these criteria whereas values above imply more area is available than the target. An ecoregion level map of ‘opportunity’ for expanding the PA estate is presented in a and summarized by biome in b. Ecoregions in brown currently meet the 30% protection target. Areas in black represent no-analog conditions.