Green Hydrogen.  Hydrogen is considered the ideal fuel by many for its clean-burning qualities.  The only emission when hydrogen is burned is water.  But hydrogen is only considered to be Green if it is produced using fuel sources that are free of GHG emissions. “What is Green Hydrogen and Why Do We Need It?”  www.weforum.org/agenda/2021/12/what-is-green-hydrogen-expert-explains-benefits/  “Hydrogen Can Secure the Planet’s Energy Supply”. www.power-technology.com 1/10/22.  “Monster Clean Hydrogen Hub Rising in Northeast US”. www.cleantechnica.com 8/28/22. “Tiny Mass. Startup Cooks Up Big, Green Hydrogen Plan”. www.cleantechnica.com 7/27/22.  In Australia: “Startup’s Hydrogen Breakthrough May Give New Life to Coal Plants” (without burning coal, of course) www.bloomberg.com 8/18/22.  “GEH2: The Zero-emission Hydrogen Power Generator”. www.eo-dev.com   And re. Hydrogen as a fuel for vehicles: “Hydrogen Fuel Cell News for Passenger Ferries & Mining Trucks”. www.cleantechnica.com 7/6/22.  What is the best scale for producing green hydrogen?  This topic is still undergoing discussion. “Go Big or Start Small: Picking the Right Scale For Green Hydrogen”. 5/4/23. www.canarymedia.com  This article looks at two green hydrogen startups.  One is large-scale: Electric Hydrogen. www.eh2.com.  Based in Devens MA.  The other is small-scale: Ohmium www.ohmium.com  In Incline Village NV and in India.