This article looks at different ways to make low CO2 emissions hydrogen for a cleaner energy future. Right now, making hydrogen without a lot of CO2 emissions is more expensive compared to the traditional way. The researchers studied various methods of making low CO2 hydrogen to see which one is best for the environment and the economy. They found that getting cheap renewable electricity is key to making low CO2 hydrogen affordable. Producing hydrogen on-site and using wind power can also help reduce emissions. Overall, the study shows that using renewable resources for making hydrogen can be better for the environment in the long run.