A person looks at stacks of trays holding treated limestone in Tracy, California, in this handout picture obtained on 9 November 2023. Direct air capture is a reality in California with plant that pledges not to take investments from oil and gas
Inside a vast new warehouse in the California town of Tracy, tall towers of trays containing a gray powder are stacked in neat rows.
It’s all part of Heirloom, a company that promises to use limestone to directly remove carbon dioxide from the air and store it deep within concrete, keeping it out of the atmosphere. The facility – […]