The transport sector, encompassing airlines, automotive manufacturers, shipping companies, and rail operators, is under immense pressure to decarbonise and meet environmental targets. Graham Upton discusses the role of alternative fuels in offsetting carbon emissions and enabling sustainable travel. In aviation, the industry is striving to address its 2-3% global CO2 emissions, with a focus on sustainable aviation fuel (SAF) as a key solution. Biofuels and electrofuels are emerging as viable alternatives, with SAF aiming to reduce emissions and achieve net zero carbon by 2050. Challenges such as high production costs and limited supply hinder widespread adoption of SAF. The shipping industry is also seeking cleaner fuel alternatives like hydrogen, ammonia, and methanol, but faces substantial financial barriers. The International Chamber of Shipping emphasizes the need for renewable electricity to produce green fuels, highlighting the complexities of achieving true decarbonisation. Advancements in technologies like battery systems and wind-assisted propulsion offer hope for greener shipping practices. Overall, the journey towards decarbonising transportation involves overcoming challenges through innovation and sustainable fuel adoption.