Hal Hodsen writes in New Scientist about volunteers producing their own on-line maps for developing nations ("Citizen cartographers fill the gaps in maps", (5 July 2013). This has been done in the past where a disaster has occurred, most prominently for the Haiti earthquake. But the New Scientist discusses mapping to improve conditions, rather than just after a disaster. In May I attended a meeting in Colombo to discuss how to help deal with pandemics, including the use of mapping.
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