The Human Footprint Index, from the Last of the Wild data set, expresses as a percentage the relative human influence in each terrestrial biome. Its values range from zero to 100, with a value of zero representing the least influenced, or ‘most wild,’ and a value of 100 representing the most influenced, or ‘least wild,’ part of the biome.
An interview with Peter Mulrean, of the United Nations agency in charge of Palestinian refugees, about what cutting U.S. aid to the program will mean for the world.