When the wrong "experts" have their say!
CalMac’s emissions analysis shows that the dual-fuel Glen Sannox will emit 10,391 equivalent tonnes of CO2 annually, compared to 7,732 tonnes for MV Caledonian Isles. While the new vessel boasts greater car capacity, its larger engines contribute to the increased emissions, as does the use of liquefied natural gas (LNG), which emits methane—a greenhouse gas with a much greater global warming potential than CO2.
https://scottishbusinessnews.net/scotlands-green-ferry-produces-more-emissions-than-diesel-predecessor/