Another step has been taken towards Biofuel in commercial aviation. Honeywell's green jet fuel which was a 50/50 blend of Honeywell's green Jet fuel and petroleum based jet fuel, which powered the Gulfstream G450. The energy crop camelina was used to produce the biofuel, which was cultivated by US-based Sustainable Oils, a provider of camelina-based technology. Honeywell's green jet fuel reduced the CO2 emissions given off from the aircraft by 5.5 tonnes. To read more on bio fuels click here.