from BBC News - World https://ift.tt/38yEwDv
Finding the 'invisible' millions who are not on maps How open map data is filling in the world's missing maps and helping trace the spread of disease. July 02, 2020 at 04:11PM https://ift.tt/eA8V8J BBC News - World
from BBC News - World https://ift.tt/38yEwDv