More than 7 years after the Paris Agreement, decarbonizing the economy remains a top priority. In 2022, the International Energy Agency (IEA) identified 26 national hydrogen strategies adopted worldwide, confirming a growing hydrogen demand. Further to the global energy crisis, the strong interest in low-carbon and renewable hydrogen has also been increasing with regards to energy security.  Green, blue, brown or pink, hydrogen may come under several color descriptions according to the type of production used – such as fossil fuels, coal, nuclear or renewable energy. The IEA has proposed new hydrogen definitions based on their emissions intensity, in an effort to contribute to the scaling-up of low-emission hydrogen production. This session will discuss the role of low-carbon hydrogen, the challenges its upscaling may pose and how to improve its potential for a just energy transition.