A British company is hoping to use drone technology in order to plant trees in areas that have been deforested.

BioCarbon Engineering recently spoke at the United Nations Solutions Summit about how the use of drones and 3D maps could help to plant trees in a cheaper and faster method than is usually done with traditional techniques.

BBC Click spoke to Martin Tengler of BioCarbon Engineering about how the technology works.

More at BBC.com/Click and @BBCClick.