Icelandair is the primary airline to vow carbon-free flying on its home routes. That’s much less promising than it sounds. Guilt-free air journey has but to attain lift-off — though excessive oil and ticket costs could assist a bit.
Icelandair plans to make use of renewable power in battery-powered plane by 2030,. That is good, as far as it goes. However low-energy density batteries are heavy for the power they carry. So the airline is tapping right into a expertise that’s solely actually a possible…