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A comment on Adding Crushed Rock to Farmland Pulls Carbon Out of the Air. Parent comment

Re:Adding Crushed Rock to Farmland Pulls Carbon Out of the Air by progne on Wednesday October 25, 2023 @03:59PM (#38017502)
For a rock to extinguish all life on and in Earth from an orbital drop it would have to be quite large. I suppose Jupiter would be big enough.
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Re:Adding Crushed Rock to Farmland Pulls Carbon Out of the Air by mkl on Wednesday October 25, 2023 @06:42PM (#38019282)
Just human life would do, not all life. But just a drop wouldn't have the relative speed of most asteroid impacts.
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