The opinion piece published on February 14, 2025, highlights the growing optimism surrounding hydrogen as a key player in decarbonizing sectors that are challenging to electrify. These 'hard-to-abate' industries, such as heavy-duty transportation, industrial heat, and backup power sources, contribute significantly to global emissions. Over the last four years, there has been a remarkable increase in hydrogen investments, with $75 billion already committed to projects worldwide and an additional $600 billion announced. This surge in investment is primarily observed in Europe and North America, where governments are providing strong financial incentives to promote hydrogen production. The article emphasizes the crucial role hydrogen is expected to play in the energy transition, particularly in reducing emissions from industries that have traditionally been hard to decarbonize. The optimism and substantial investments in hydrogen projects signal a positive outlook for its potential to drive significant emission reductions and support the transition to a more sustainable global economy.