
Saved by sari
We Need To Take CO2 Out Of The Sky
Saved by sari
Carbon removal or carbon drawdown is widely recognised as a requirement.
Just as there are lots of ways to add CO2 to the air, there are lots of ways—potentially—to remove it. A technique known as “enhanced weathering” is a sort of upside-down version of the project I toured at the Hellisheiði Power Station. Instead of injecting CO2 deep into rock, the idea is to bring the rock up to the surface to meet the CO2. Basalt
... See moredirect air capture. It involves exactly what the name implies: capturing carbon directly from the air. DAC is more flexible than point capture, because you can do it anywhere. And in all likelihood, it’ll be a crucial part of getting to zero; one study by the National Academy of Sciences found that we’ll need to be removing about 10 billion tons…
So
But it’s one thing to be able to pull carbon out of the air and quite another to be able to pull this off at scale. Burning fossil fuels generates energy. Capturing CO2 from the air requires energy. So long as this energy comes from burning fossil fuels, it will add to the carbon that has to be captured. A second major challenge is disposal. Once c
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