Deploying hydrogen planes in Europe is economically feasible, new study shows, but must be supported by the right set of policies and incentives. Hydrogen jets could be cheaper to run than fossil fuel planes from 2035 provided kerosene is taxed adequately, a new study shows[1],[2]. In 2035, running planes on hydrogen could be 8% more expensive than using kerosene. But with a tax on fossil jet fuel and a price on carbon, hydrogen planes could become 2% cheaper to operate than their kerosene counterparts (....)