years to fully recover the forecast for 2050 is for passenger flights to more than double, to 10 billion every year. and yet the aviation industry has pledged to achieve net zero carbon emissions by the middle of the century. so, is it possible? here to try to answer that isjo dardenne, aviation manager at the campaign group transport and environment. good morning to you. one of the biggest issues with the aviation industry is the fuel, this really dense, heavy hydrocarbon, is there such a thing as a more sustainable alternative to aviation fuel? indeed, as you mention, the only way for aviation to reduce its mission is to stop burning thisjet fuel, this its mission is to stop burning this jet fuel, this fossil fuel. unfortunately, unlike other modes of transport we still see aviation exclusively