Does flying have to be bad for the environment? Val Miftakhov, the founder and CEO of ZeroAvia, doesn’t think so. His company built a plane that’s powered by hydrogen fuel, which produces zero carbon emissions. It had a successful test flight earlier this year and Miftakhov hopes it will be ready for commercial use by 2025.

How AI Could Actually Make the World Better
44:15

Finding Meaning (and Money) in the AI Age
48:12

Using Pokémon Go to Map the World
36:29