Denmark uses drones to track the sulfur content in the exhaust of ships

Ships emit three times more sulfur when moving than cars. It's all about the fuel oil, which

used as fuel.

In order to control the sulfur content inair and its emissions, Denmark has developed a monitoring system that allows ships passing through the Great Belt to be monitored from a drone.

Aircraft Skeldar V-200, developedSwedish Saab, follows the ship at a distance of about 100 m. The drone sends the operator a video of the ship and data on the sulfur concentration in its emissions. On the assessment of emissions from the apparatus takes from 5 to 10 minutes.

Previously, the engineers of the Swiss aviation and rescue organization Rega created an unmanned helicopter capable of independently finding the missing people.