“Our imprint is now truly global. Our impact is now truly profound. Our blind assault on the planet has finally come to alter the very fundamentals of the living world” – These powerful words from Sir David Attenborough in the 2020 documentary A Life On Our Planet, starkly sums up the state of the world. Human activities are driving the destruction, degradation and depletion of the natural world. The evidence is truly sobering. Wildlife populations have seen an average 73% decline since 1970. Over 50% of coral reefs have been lost since the 1950s. Up to 40% of global land area is now classed as degraded. And approximately 35% of global wetlands have been lost since 1970.7 A suite of metrics exists that can serve as helpful tools for understanding and tracking biodiversity changes. For example, the Natural History Museum’s Biodiversity Intactness Index (BII), estimates how much of an area’s natural biodiversity remains.”
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