The Science of Climate Engineering
Direct Air Capture (DAC) and Mineralization are two methods of removing carbon dioxide (CO2) from the atmosphere. DAC is a technology that involves capturing CO2 from the air and then storing it in a permanent location. This can be done through a variety of methods such as adsorption, absorption, and chemical reaction. Mineralization, on the other hand, involves converting CO2 into a stable mineral form that can be stored in the ground. This is usually done by reacting CO2 with minerals such as olivine or serpentine.
DAC and mineralization can be used together in a process called Carbon Mineralization. Carbon Mineralization involves capturing CO2 from the air using DAC and then reacting it with minerals to create stable carbonates. These carbonates can then be stored in the ground where they will remain for thousands of years.
One of the advantages of DAC and mineralization is that they can be used to remove CO2 from the air regardless of where the emissions occurred. This makes them particularly useful for removing CO2 from emissions that are difficult to capture, such as those from airplanes and ships. However, the technology is still in its early stages and there are some challenges that need to be overcome. These include the high cost of the technology and the large amounts of energy needed to power it. Nonetheless, the potential of DAC and mineralization to remove CO2 from the atmosphere is significant and could play a key role in mitigating the effects of climate change.
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