Hydrogen is being hailed as a crucial component in decarbonizing industries such as heavy industry, agriculture, power production, shipping, and aviation. Governments worldwide, led by the European Union and the United States, are heavily investing in building a hydrogen economy. The US has initiated the establishment of seven hydrogen hubs with significant financial backing to facilitate the widespread adoption of clean hydrogen. The focus is on developing low- and zero-carbon hydrogen production systems, with technologies like gas-based production with carbon capture (blue hydrogen) and electrolysis using clean electricity (green hydrogen) leading the way. The production tax credit (45V PTC) incentivizes clean hydrogen production, influencing the choice between various production methods. However, the accurate estimation of greenhouse gas emissions intensity in hydrogen production is crucial. Current studies emphasize the necessity of using measurement-informed emissions inventories to avoid underestimation of emissions. By developing a geospatial life-cycle assessment model, researchers aim to create supply-chain-specific estimates of GHG emissions intensity in blue hydrogen production, highlighting the importance of precise emissions data for effective decarbonization strategies.