Algae-based biofuels are a hot area of renewable energy research. But the algae fuel industry has a long way to go before it can match the demand for oil, or compete on price terms. Algae biofuel costs a whopping $7.50 a gallon, according to a 2014 report from the National Alliance for Advanced Biofuels and BioProducts. #algae #biofuel #science #nature #gas #naturalgas #bioproducts #environment #energy #renewableenergy #biology #iflscience #ifls