A new game from Geo-Wiki called Cropland Capture lets gamers play a part in helping to map the world's farmland, and potential farmland, by identifying areas on aerial photographs. "We know, for example, in Africa, there are huge yield gaps. This means you could produce much more food in certain places in Africa, but we don't even know where exactly the cropland is," said project leader Steffen Fritz, adding that the results of the game will be the first steps in creating an accurate global crop map. In the first week, gamers surveyed 65,000 square kilometers of land.

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