(Source: treehugger.com) Drones, or unmanned aerial vehicles (UAVs), have taken off in popularity recently, with hobbyists and professionals alike using these small remotely-guided devices for everything from delivering packages to surveying wildlife populations, but one startup has a very ambitious plan for their drones, and one that could have a huge positive impact on … [Read more...] about How Do You Plant 1 Billion Trees a Year? With Drones, Of Course