Figure 1: Global Transportation Networks
Map showing the global extent of humanity's transportation systems. Rods, railsways and shipping lanes are mostly visible.
Figure 2: Human Influence on the planet
The Human Influence Index (HII) is a measure of direct human influence on terrestrial ecosystems using best available data sets on human settlement (population density, built-up areas), access (roads, railroads, navigable rivers, coastline), landscape transformation (landuse/landcover) and electric power infrastructure (nighttime lights).
Figure 3: Global Urban Expansion to 2030
Urban land-cover change threatens biodiversity and affects ecosystem productivity through loss of habitat, biomass, and carbon storage. Although urbanization is often considered a local issue, the aggregate global impacts of projected urban expansion will require significant policy changes to affect future growth trajectories to minimize global biodiversity and vegetation carbon losses.
Figure 4: Urban population growth from 2010 to 2025.