this post was submitted on 16 Feb 2025
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Even if we went to zero emissions soon, we'd still want to decrease CO2 over time to reverse the effects of climate change. Capturing co2 is always going to be much more energy intensive than not emitting it in the first place, but sometimes you don't have another choice.
Or you know, we could plant trees…the original carbon capture device.
Yeah, but then you need to cut them down and burry them so that decomposition doesn't release the co2 again. And it takes a lot of land, which can be prohibitive on the scale we'll need.
Another interesting option is fertilizing parts of the ocean for algie to grow. Cody'sLab has an interesting video on a possible way to do that with intentionally crashing astroids into the ocean. https://youtu.be/z7u_IqzkJzE https://youtu.be/2zQb_OitsaY/?t=13m40s
All of these, plus mechanical direct air carbon capture are methods of carbon capture. The right answer will likely be some mix of all of them.
that's why I just throw all my used paper in the trash to be buried in landfills #doingmypart #onlykindajoking