Flying significantly contributes to carbon emissions, with business and first-class seats being five times more carbon-intensive than economy. A study suggests that eliminating premium seating, using fuel-efficient aircraft, and increasing passenger occupancy could reduce emissions by 50-75%. The USA is the highest emitter, and while efficiency has improved, demand for flights is outpacing these gains. Immediate actions could lead to an 11% reduction in aviation emissions. Teljes cikk (Euronews.com)