Aviation is one of the hardest sectors to decarbonise - and with demand for flights only growing, the pressure is on to find cleaner fuels.

Sustainable Aviation Fuel (SAF) is being pitched as the industry’s game-changer, promising to cut emissions while keeping planes in the sky.

But: is it really the answer?

In this episode, we unpack what SAF actually is, how it works, and whether it can scale fast enough to matter. From supply bottlenecks to sky-high costs, we look at the hurdles ahead—and ask if it’s a genuine pathway to guilt-free flying or just a drop in the ocean.

Join David Carlin and Simon Messenger as they explore whether Sustainable Aviation Fuel is the future of flight—or just a story that’s taking off without enough fuel behind it.