The drone, a pilotless aircraft , this technology is starting a silent revolution and environmental benefits.

Best known for its military applications, civilian use will become more common in the coming years, experts say.

Various Renewable pioneers like America Renovable uses "Eco Drones" that works with electricity for environmental missions:

Improve yields with less water and pesticides, help some endangered species, help to predict the behavior of hurricanes and volcanoes,

Study disasters like Fukushima and put out forest fires even at night.