Every year, about 15 billion trees are cut down to make way for agriculture, mining, logging, and urban sprawl. Such mass deforestation has accelerated global warming and imperiled the survival of millions of species. Though many nations, organizations, and even individuals have tried, no one has been able to plant enough trees to make up for that loss—but some innovative entrepreneurs are working on a high-tech solution.

Current tree-planting programs "are just not fast enough,” said Irina Fedorenko, a co-founder of the company. “But our technology is automated, so we can scale up quite realistically and quite quickly.” (Learn about the teenager who is on track to plant a trillion trees.)

Trees are critical to absorbing the greenhouse