Hydrogen is a promising energy carrier that can greatly contribute to reducing carbon emissions. In order to achieve net-zero carbon emissions by 2050, it is important to decarbonize gray hydrogen production derived from Steam Methane Reformers (SMR). Typically, this can be achieved through improving unit efficiency, using low-carbon feedstocks, and pre-combustion capture or post-combustion carbon capture technologies. These measures will also allow the SMR to export low carbon steam, which reduces greenhouse gas intensity of adjacent processes. It is crucial that we transition towards a less carbon-intensive approach to hydrogen production if we are to reach a net-zero emissions by 2050.