According to WWF Director Stephen Singer, the aviation industry should look to liquid hydrogen and not biofuels if it wants to reduce CO2 emissions. Addressing a roundtable on the environment at the European Parliament last month, Singer declared that liquid hydrogen and algae should be the sole focus because they do not interfere with food production. “There is reason to look into liquid hydrogen as a long-term solution,” he said. He acknowledged that it is not viable at ...

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