“…Some seaplane types, like the amphibious, are equipped with a landing gear that allows them to land not only on water but also on land (Gobbi et al, 2011;Odedra et al, 2004) enabling them to use multiple transport infrastructure types. The required infrastructure is minimal compared to the other modes since in addition to the landing and take-off runway, which is located on water, it is only necessary to connect the seaplanes to the shore and a water lane to allow their take-off and landing manoeuvres (Federal Aviation Administration, 2018;Odedra et al, 2004;Quilty et al, 2015). Compared to ferries, even though emissions per minute are higher for seaplanes, the journeys are done in a significantly shorter time ending up being less pollutant overall (Gobbi et al, 2011).…”