A significant component of commercial aviation’s climate footprint results from contrails and aviation’s role in cirrus cloud formation. Can renewable hydrogen help in mitigating this problem?

Possibly. Combusting hydrogen in place of aviation fuels would not help the contrail issue. Using renewable hydrogen to synthesize fuels for today’s combustion turbine aircraft would also not help. If the hydrogen is used to create electricity for motorized turbines,...

How is hydrogen transported?

Hydrogen can be transported in many ways that include: As a pressurized gas in truck- or rail-mounted tanks. In lower pressure metal hydride tanks. As a cryogenic liquid in insulated tanks. In pipelines. Combined with other molecules to make other liquids and gases...