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Many of the new solutions to flight climate change sound almost impossible. What if a machine could suck planet-warming carbon dioxide out of the air and store the gas forever inside concrete bridges and buildings?
Well, that’s happening. Last month, in the city of Tracy, California, the U.S. energy secretary joined a group of very excited scientists and corporate executives to celebrate a milestone: the country’s first commercial-scale direct-air capture, or DAC, facility.
Well, that’s happening. Last month, in the city of Tracy, California, the U.S. energy secretary joined a group of very excited scientists and corporate executives to celebrate a milestone: the country’s first commercial-scale direct-air capture, or DAC, facility.
A 'concrete' solution to climate change
Posted from wbur.org
Climate Change
Science
Tracy
Posted 5 mo ago
Responses: 2
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PO1 William "Chip" Nagel
..."Carbon-hungry limestone
The technology works by taking advantage of limestone’s natural tendency to absorb carbon dioxide. Inside Heirloom’s DAC plant, towers of stacked trays rise 40 feet above the ground.
Towers filled with trays of limestone are absorbing carbon dioxide directly from the atmosphere at Heirloom’s new plant in Tracy, California. (Peter O'Dowd/Here & Now)
Towers filled with trays of limestone are absorbing carbon dioxide directly from the atmosphere at Heirloom’s new plant in Tracy, California. (Peter O'Dowd/Here & Now)
A tray of limestone powder absorbs carbon directly from the atmosphere at Heirloom’s new plant in Tracy, California. After about three days, the tray is sent to a kiln where a blast of heat separates the carbon dioxide from the limestone. (Peter O'Dowd/Here & Now)
A tray of limestone powder absorbs carbon directly from the atmosphere at Heirloom’s new plant in Tracy, California. After about three days, the tray is sent to a kiln where a blast of heat separates the carbon dioxide from the limestone. (Peter O'Dowd/Here & Now)
Each one of the trays is covered with a powdery limestone substance. As a breeze moves through the open-air building, the carbon in the atmosphere binds to the limestone. After a few days, robots move the trays into a kiln where a blast of heat separates the carbon from the limestone. All of it is powered by renewable energy.
But one plant is nowhere near enough, Samala says."...
..."Carbon-hungry limestone
The technology works by taking advantage of limestone’s natural tendency to absorb carbon dioxide. Inside Heirloom’s DAC plant, towers of stacked trays rise 40 feet above the ground.
Towers filled with trays of limestone are absorbing carbon dioxide directly from the atmosphere at Heirloom’s new plant in Tracy, California. (Peter O'Dowd/Here & Now)
Towers filled with trays of limestone are absorbing carbon dioxide directly from the atmosphere at Heirloom’s new plant in Tracy, California. (Peter O'Dowd/Here & Now)
A tray of limestone powder absorbs carbon directly from the atmosphere at Heirloom’s new plant in Tracy, California. After about three days, the tray is sent to a kiln where a blast of heat separates the carbon dioxide from the limestone. (Peter O'Dowd/Here & Now)
A tray of limestone powder absorbs carbon directly from the atmosphere at Heirloom’s new plant in Tracy, California. After about three days, the tray is sent to a kiln where a blast of heat separates the carbon dioxide from the limestone. (Peter O'Dowd/Here & Now)
Each one of the trays is covered with a powdery limestone substance. As a breeze moves through the open-air building, the carbon in the atmosphere binds to the limestone. After a few days, robots move the trays into a kiln where a blast of heat separates the carbon from the limestone. All of it is powered by renewable energy.
But one plant is nowhere near enough, Samala says."...
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What if a machine could suck planet-warming carbon dioxide out of the air and turn it into oxygen like trees do?
No money in it, never mind!
No money in it, never mind!
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