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.
from BBC News - World https://ift.tt/38yEwDv
from BBC News - World https://ift.tt/38yEwDv
Finding the 'invisible' millions who are not on maps
![Finding the 'invisible' millions who are not on maps]()
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July 02, 2020
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