Today Ian welcomes Naresh Kumar in his show. Naresh starts off talking a bit about his journey and how he became the head of sustainability and what that title means. Naresh then talks more about the goals and innovations in the area of emission reduction in the world of airplanes. Ian and Naresh then talk a bit more about specific advancements with fuels for airplanes. After the short announcement Ian and Naresh talk more about different types of fuels and their benefits, mainly about synthetic kerosene. Naresh then explains what innovations in the sphere of engines he can imagine being done in a few years. Naresh and Ian both discuss how much does the outer design contribute to the overall reduction of emissions and what can be done to better this area of plane production. Ian then raises some safety concerns which Naresh addresses and explains the security behind them. Ian asks Naresh about the current interest in the market and how Naresh views the future of it. In the guest outro Naresh shares his final thoughts and invites people to contact the company in case there would be an interest in cooperation or some contribution.