Surveyors of the Earth

If at first human being used stars to find its bearings mankind can nowadays count on science to measure the Earth at a millimetric scale Because land surveying of our planet is still in full swing Satellites cameras or drones technology progress allows the scientists to explore it all They can measure oceans volcanoes or even the atmosphere But scientists are walking a tightrope torned between their desire to gather more and more informations and a population concerned about personal datas protection This documentary shows a glimpse of actual scientifical research and interrogate numerous scientists about the interest of land surveying in their specific field of research