Yes it is very real and currently some organizations are trying to work with drones to ease work load, it is already happening and not for long now many people will embrace the idea because as was said modern scientific is growing fast as well aa development. Greencoin project is very essential in our present day life where we neglect the planet.
But the draft Greencoin does not indicate in its technical information any references to aircraft ... they rather develop a comprehensive platform on which all other projects working in the field of environmental protection can be placed.