“BEIJING  Airlines need government support to lower the cost of biofuels that could help to reduce pollution and carbon emissions.” The head of the global aviation industry group said Thursday.

Airlines have flown some 1,500 commercial flights using fuel made from plants, but supplies are limited and costly, said Tony Tyler, chief executive of the International Air Transport Association.

“We need governments to adopt policies to help support commercialization of biofuels to bring up the volume and bring down the price.” Tyler said. He was in Beijing for IATA’s annual general meeting, due to be held next week.”

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