Drones are popularly associated with American air strikes on civilians and thus have a negative reputation. The technology underlying the drones can be used for good though. One example of a good use of drones is for aerial surveillance of plants and animals in hard to access/expensive areas.
What are our forests really made of? From the air, ecologist Greg Asner uses a spectrometer and high-powered lasers to map nature in meticulous kaleidoscopic 3D detail — what he calls “a very high-tech accounting system” of carbon. In this fascinating talk, Asner gives a clear message: To save our ecosystems, we need more data, gathered in new ways.