Carbon dioxide is one of the main sources of greenhouse gas emissions in the world. Since the 1750’s, humans have released nearly more than 2.3 trillion metric tons of CO2 into the atmosphere from a variety of sources, including petroleum consumption, cement production and industrial processes. In 2019 alone the United States emitted 6,558 million metric tons of CO2, with transportation fuels accounting for nearly 1,700 Million metric tons/year. While renewable fuels and energy efficiency efforts can slow emissions rates, only methods that capture atmospheric CO2 and prevent it from being re-emitted can have any hope of reversing climate change trends.
In addition to our efforts to sequester carbon dioxide underground, Aemetis uses plants to capture CO2 from the atmosphere via photosynthesis. A portion of this plant matter is converted to renewable vehicle fuels, with 200,000 tons/year of CO2 produced as a byproduct at each of our facilities. This CO2 will be injected more than a mile underground, where it is predicted to remain for centuries, effectively reducing atmospheric CO2 levels. The remaining CO2 to be injected will come from California’s refineries, lowering future emissions from the production of motor vehicle fuels.