[HN Gopher] How seawater might soak up more carbon
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       How seawater might soak up more carbon
        
       Author : dnetesn
       Score  : 13 points
       Date   : 2023-02-09 21:44 UTC (2 days ago)
        
 (HTM) web link (nautil.us)
 (TXT) w3m dump (nautil.us)
        
       | greenornot wrote:
       | > nearly 1,800 full-size factories on coastlines
       | 
       | Good luck manufacturing those in a carbon-neutral way.
       | 
       | There are no hacks. We need to stop emitting so much of this
       | stuff.
       | 
       | Who is going to pay for those factories that net-reduce emissions
       | by 1/4? what about pouring those fund into avoiding emissions in
       | the first place, like replacing coal plants with something green
       | or not building new ones or not burning down rain forest or
       | getting people to not commute for 3 hours a day in their SUVs or
       | flying intercontinental for a week of beach holiday?
        
       | gmuslera wrote:
       | There is no way to get out of this without carbon capture. We
       | already have too much carbon in the atmosphere, even if we reach
       | net zero. And a lot of that extra carbon in the system was buried
       | before being pumped up as fossil fuel.
       | 
       | Said so, we won't survive the death of the oceans. And that is
       | what is the worst that can happen meddling in scale with them, if
       | even because we don't know yet all the players there. We are
       | still getting surprised by unexpected interactions, new feedback
       | loops, new things and new ways of things going wrong. Could be
       | (existing or emerging) process that reemits that "captured"
       | carbon, so the effort may be short lived or kick back badly. And
       | meddling without knowing the consequences is not
       | (geo)engineering.
       | 
       | Most net zero proposals (and this carbon capture "solution")
       | doesn't put in the map severely cutting down extraction, just
       | moving that carbon around the system in a potentially transitory
       | way, and keeping adding new fossil carbon because capturing
       | something will be flagged as a green card to keep business as
       | usual.
        
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       (page generated 2023-02-11 23:00 UTC)