Direct air capture with durable storage projects are a carbon-removal project type within the engineered & geological segment of the carbon market. They use technologies that chemically or electrochemically capture CO2 directly from ambient air and store it durably. In practice, the project captures CO2 directly from ambient air and then stores it durably. Common project configurations include DAC with saline aquifer storage; DAC with mineralization; DAC with approved ocean storage route.

DAC is notable because it measures CO2 directly from the atmosphere, but energy sourcing and storage quality determine net climate performance. This segment is generally aimed at more durable carbon storage and is often attractive to buyers seeking high permanence, but lifecycle emissions, measurement precision, and storage durability remain the decisive quality questions. For buyers and program designers, the most important diligence questions are: How carbon-intensive is the energy supply? Is storage demonstrably durable? Are capture measurements and lifecycle emissions transparent?