Speaking at an event at the Cop27 Summit in Egypt, the former prime minister said: “There will be and are many victims of this tragic miscalculation, but I believe that climate change, the fight against climate change, was one of the most important guarantees. victims because the rise in oil and gas prices and the resulting global inflation, increases in the cost of fertilizers and food, have had an impact here in Egypt, they have had an impact everywhere. “They’ve led some of the naysayers to adopt a corrosive cynicism about Net Zero and people have started to say oh, we’ve all gone too far too fast and we’ve been naïve and utopian in our rush to move beyond hydrocarbons, that we have caused unnecessary energy costs to our populations. “People have come to the conclusion, some … that have come to the conclusion that the whole Net Zero project needs to be delayed and scrapped and frozen and you know, for example, we need to reopen coal-fired power plants and to get out of the British countryside. “So I think here in Sharm is a time when we really have to face this nonsense head on.” Mr Johnson said now was “not the time to give up on the campaign for Net Zero”.