Google Maps stores a 'tiny' amount of data per person. The surface area of the earth is a little less than 200million square miles or a little less than 2/3 of a square mile a person. at 1 foot accuracy that would only be two 10 megapixel pictures per person not that we actually have maps anywhere near that good of most small towns let alone the oceans or arctic. The only thing that really spit's out data is raw scientific data, but even Nasa just dumps well over 99% of what they collect so it's more of a short term problem.