Deep in the African rainforest and three days from home, a tribal hunter, punting down a backwater, puts aside his spear and takes out a GPS handset. He doesn’t need the Global Positioning System to know where he is. He is intimate with every inch of his tribe’s forests. But he taps an icon on the screen to identify the burial ground, sacred grove, or wildlife-rich swamp he is passing, then puts the handset back in his hunting bag, and carries on. The data on the handset will later be uploaded onto remote sensing maps created by Google Earth. Now his knowledge can be shared with the world. Read More