TOPSHOT - A Railway Protection Special Force (RPSF) personnel walks through the coaches of an Indian Railways' hydrogen-powered train at a depot ahead of its launch in Haryana's Jind on July 16, 2026. India launched its first hydrogen-powered train July 17, joining a small group of nations testing the technology as part of efforts to decarbonise rail transport and cut dependence on fossil fuels. (Photo by Arun SANKAR / AFP via Getty Images)