The Human Footprint Index (HF) expresses as a percentage the relative hum an influence in each terrestrial biome. HF values range from 0 to 1 00. A value of zero represents the least influenced - the "most wild" part of the biome with value of 100 representing the most influenced (least wild) part of the biome.
The Human Footprint Index

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Alex E

“Maps are like campfires – everyone gathers around them, because they allow people to understand complex issues at a glance, and find agreement about how to help the land.”