Air Liquide has entered an agreement to support ExxonMobil's blue hydrogen production project in Baytown, Texas, with plans to transport hydrogen through Air Liquide's pipeline network along the US Gulf Coast. The project includes the construction of four large modular air separation units to supply oxygen and nitrogen to the facility. Expected to start production in 2028, the Baytown plant aims to produce significant amounts of hydrogen and ammonia annually. JERA, a Japanese energy firm, also announced plans to potentially partner for ammonia offtake. The article highlights the challenges facing blue hydrogen, including meeting emissions criteria for tax credits and the ongoing debates about its role in the energy transition. Despite criticisms, blue hydrogen is gaining attention as a production pathway amidst the push for decarbonization. The use of Topsoe's carbon capture technology and the anticipation of the final investment decision later this year demonstrate the project's progress and commitment to reducing emissions.