Drones Are Keeping Watch on the Arctic's Polar Bear Population

Polar bears' fortunes are deeply tied to the whims of a changing climate, and as the Arctic continues to warm it's increasingly important to keep an eye on their populations. But the Arctic’s stark white terrain can make that a difficult task to accomplish.In the past, helicopters have been used to spot the bears, but those aircraft are both costly and disturbing to the wildlife. However, drones are a low-cost, less invasive alternative. On a recent Arctic mission, drones helped gather d