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Why it's so hard to catch CO2 from the air

October 26, 2018 Science 2 Views Earth's climate is changing, and that's our fault. We dig up and burn carbon…

Earth’s climate is changing, and that’s our fault. We dig up and burn carbon sources that would otherwise have been locked in the ground, add it to our atmosphere and push average global temperatures up. So why do not we take the coal out of the air and push it somewhere?

This is the idea behind negative emission technologies or NET. They are a possible tool to stop climate change, but they are not the silver bullet. It is tempting to think that if we develop a way to scrub the air of CO2, we do not need to reduce our emissions so much. No lifestyle change, no big change in energy infrastructure, just a quick solution that keeps this climate change a thing to come true.

Unfortunately, while theoretically possible, it is very far from practical. In early 201

8, the European Academies Science Advisory Council released a report on how feasible networks reduce or reverse the effects of atmospheric carbon dioxide and their conclusion is not good.


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