For Boeing , green diesel is one of most compelling of the many biofuel `` pathways '' -- but not because it 's considered to be better than other sources in terms of carbon emissions . the Sustainable Bioenergy Research Consortium announces more than 1,500 new aviation biofuel initiatives . The United Arab Emirates airline maker says `` green diesel '' would emit 50 % less carbon dioxide than fossil fuel over its lifecycle . In 2012 , air transport produced 600 million gallons of carbon dioxide -- 50 % of the global total .
the Sustainable Bioenergy Research Consortium announces more than 1,500 new aviation biofuel initiatives . The United Arab Emirates airline maker says `` green diesel '' would emit 50 % less carbon dioxide than fossil fuel over its lifecycle . In 2012 , air transport produced 600 million gallons of carbon dioxide -- 50 % of the global total .