A drone start-up is going to counter industrial scale deforestation using industrial scale reforestation. Bio Carbon Engineering wants to use drones for good, using the technology to seed up to one billion trees a year, all without having to set foot on the ground. 26 billion trees are currently being burned down every year while only 15 billion are replanted. If successful, the initiative could help address this shortfall in a big way. Drones should streamline reforestation considerably, with hand-planting being slow and expensive.

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