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Just like hydrogen, biofuels have received a lot of policy attention recently. Europe, the US, Canada, and India are among the countries that extended support. However, higher gas prices (thanks to the war in Ukraine) have made governments cautious about implementing any blending requirements with still-pricey biofuels, so as not to further escalate prices at the pump. Growing algae for biofuels is expensive. It requires large amounts of water and pricey nutrients, and the process to harvest algae and turn it into fuel is difficult. At Aston University in the UK, coffee grounds were used as feeding ground for microalgae to produce low-emission biodiesel, solving some of the pain points of traditional algae fuel production.

Biofuel from algae


Cleaner fuels