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A comment on Scientists Identify How Many Trees to Plant and Where to Stop Climate Crisis. Parent comment

Re:Scientists Identify How Many Trees to Plant and Where to ... by numbsafari on Monday September 30, 2019 @11:08AM (#21116136)
I would offer that a lot of proposals like Project Vesta sound great, but are massive-scale geo-engineering projects that could, themselves, have unintended consequences.
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Re:Scientists Identify How Many Trees to Plant and Where to ... by wiz21c on Monday September 30, 2019 @11:15AM (#21116213)
From the web site :

A volume of 7 cubic miles (11 km^3) of olivine, or around 30 Gigatons, is needed each year. This is less than half the volume of construction materials and less than that of fossil fuel equivalents mined yearly.

That's gigantic, how can they sustain that 30 gigatons a year ?

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