COP26 — what a load of old baloney and hot air! The world’s largest collective public relations jamboree, where world leaders arrived at a climate conference in private jets. Our glorious leader, the prime minister, rose to the occasion, as a Yorkshire pudding rises in the oven. Other leaders followed suit, each one rising to the occasion, until there was enough hot air to launch an airship. Which brings us conveniently to the first climate change fallacy: that hydrogen will solve our green house gas woes. Domestic gas boilers, we are told, are already hydrogen ready, or will only need minor tweaks to burn hydrogen. Perhaps those promoting hydrogen as the solution might care to reflect on what happened to …