Blue hydrogen, produced from natural gas through the process of steam methane reformation, is one of only a few methods that help make the industrial production of hydrogen a little cleaner — though it still falls short of the zero-emission or “green” hydrogen made using renewable power and electrolyzers. But a startup company claims to have made a technical breakthrough that enables making blue hydrogen less expensively and with significantly fewer carbon emissions. Ryan Milcarek, a Fulton Schools assistant professor of mechanical and aerospace engineering, has examined the technology. He deems it a promising technique for providing an alternative pathway to generating hydrogen in a less environmentally detrimental way than existing technologies. The technology has been tested at ASU and is now undergoing testing by the U. S. Department of Energy.