We provide the first spatially continuous map of forest tree density at a global scale. This map reveals that the global number of trees is approximately 3.04 trillion, ...

Now their map has inspired another Web developer, Cameron Beccario, to adapt the concept to a global scale. Beccario started with a wind map of Tokyo , where he lives. Then he took on the world.

Researchers led by a team at the University of Wisconsin–Madison have created the first tool to map and visualize the areas where human settlements and nature meet on a global scale. The tool ...