Hydrogen Powered drone that only emits water as it waste.

[Chidera Ndukwe]

This is really amazing to hear about a seemingly more conservative method of powering the drones. But as you said, the contamination of water bodies may also be a problem especially if the waste is harmful

I mean is amazing but true the water that is emitted can be harmful but am sure thier is a way to make the waiter clean and purify for drinking and other safe purposes.