Signs continue to mount that the demand for hydrogen fuel stocks will be quite strong in the coming years. One of the latest such developments was the strong Q2 delivery data provided by Hydrogen-powered truck maker Nikola (NASDAQ:NKLA). In Q2, the company delivered 72 such trucks, well above its previous guidance of 60. Moreover, one of its customers was Walmart’s (NYSE:WMT) Canada unit. That indicates that the world’s largest retailer is interested in participating in the Hydrogen Revolution. Meanwhile, i ...