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Comment by graypegg

7 hours ago

You already know why that’s a confusing argument because you included the time scale yourself, but to say the obvious: I think we probably need to go a bit faster than “millions of years”.

It took nature millions of years to go from 7000ppm to under 700ppm. But we are talking a diff of only about 100ppm. Not cutting down the rainforest or raising a forest of that scale in some desert does seem like a positive contribution.

Another good idea would be to mandate working from home for everyone that reasonably can do so. During Covid I've only measured about 300ppm as the bottom baseline, while nowadays I do not measure lower than 400ppm. (Co2 measuring devices are fairly cheap and good to have in your office, as high Co2 affects your ability to think clearly. Without opening a window and having just one person inside Co2 easily climbs to about 3000ppm within a few hours just from your breathing.)