As Taoiseach Micheál Martin put it at the launch of the Government’s new Climate Action Plan this Thursday evening, “if we delay any further, we will face greater costs and be able to seize fewer opportunities.” His fellow coalition leaders, Tánaiste Leo Varadkar and Minister for Climate Eamon Ryan, stressed how “urgent” it was to cut greenhouse gas emissions. The programme for government they agreed in June 2020 puts a figure on this challenge: a 51 per cent reduction by 2030, compared with 2018. This was enshrined in legislation this year. Yet the plan they were just launching contains an…