Airships and Hydrogen Powered Freight

Airships are making a comeback! With the increased pressure to reduce our CO2 emissions from air travel and the complications of electrifying a plane, companies are emerging with new ideas for these floating giants. This week we weigh the benefits of helium versus hydrogen, more ways to get our shipped goods into the skies, and will a soulful R&B jam convince Veronica to return to the podcast?