Lithuania has become the latest country to look towards drones to monitor ship emissions along its 140-nautical-mile (262-km) Baltic Sea coast.
It has secured the drone from the European Maritime Safety Agency (EMSA)'s remotely piloted aircraft system (RPAS) for an initial three-month period.
Sensors on board the RPAS will measure the emissions from the exhaust plumes of vessels travelling in the main shipping lanes and when at anchor off the port of Klaipeda.
