Comment by sdeframond
1 day ago
"Wait, do you mean I should pay to capture the carbon my neighbors emits? No way!"
That's why.
Edit: Also, as some other comment said, thermodynamics tell us that it would take an inordinate amount of energy to bring carbon back to safe levels. More than what we get from burning oil. It's about entropy and all that. So there's that.
Will doubling of forest helps ? ( not that it is possible )
See my sibling comment to the parent. Doubling forests won't do near enough, because the carbon we've burnt comes from millions of years of forests compacted into coal (among other sources). We'd need to grow millions of years worth of forests, which we just physically don't have the surface area for.
Its regionally complicated because increased tree cover can lower albedo (reflectivity of radiation) which offsets the co2 removal benefits. Forrests can tip from co2 sinks to co2 sources which is happening in different regions of the world currently.