Here’s the rub of algae fuels: algae absorbs CO2 as it grows, and this CO2 can come from, say, power plant emissions, thus providing a productive way of recycling the carbon emissions. But when algae fuel is burned in … Solazyme says that “from field-to-wheels,” Solazyme’s “Soladiesel” is “85 to 93 percent lower than standard petroleum based ultra-low sulfur diesel” and has “a significantly lower carbon footprint than any currently available first-generation biofuels. …

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How Good Is Algae Fuel At Fighting Climate Change? Totally Depends