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Can we sequester carbon fast enough? growing disconnect between models and reality

a day ago by silence7 to c/climate

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TropicalDingdong 16 points a day ago

Can we sequester carbon fast enough at all? growing disconnect between models silicon valley startups and reality

ftfy.

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phutatorius 8 points 14 hours ago

Sequestration is bullshit.

Cut emissions.

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HerbGrower 4 points 9 hours ago

Stop dumping more of it would be a good start

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lefaucet 4 points 5 hours ago

Folks need to wrap their heads around the 2nd law of thermodynamics. Converting carbon to CO2 gives us lots of energy and it will take like... way more energy to reverse that process

Even with shortcuts like finding lots of Calcium. Gonna take a LOT of calcium which will take a LOT of energy.

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lefaucet 2 points 5 hours ago

Folks need to wrap their heads around the 2nd law of thermodynamics. Converting carbon to CO2 gives us lots of energy and it will take like... way more energy to reverse that process

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Greyghoster 1 point 4 hours ago

Folks need to wrap their heads around the fact the any attempt to sequester carbon is pointless if we don’t reduce emissions. QED

There may be a place after emissions are reduced but of limited impact.

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blu3b3rryblue 1 point 6 hours ago

We need a cultural shift.

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Discussion of climate, how it is changing, activism around that, the politics, and the energy systems change we need in order to stabilize things.

As a starting point, the burning of fossil fuels, and to a lesser extent deforestation and release of methane are responsible for the warming in recent decades: Graph of temperature as observed with significant warming, and simulated without added greenhouse gases and other anthropogentic changes, which shows no significant warming

How much each change to the atmosphere has warmed the world: IPCC AR6 Figure 2 - Thee bar charts: first chart: how much each gas has warmed the world. About 1C of total warming. Second chart: about 1.5C of total warming from well-mixed greenhouse gases, offset by 0.4C of cooling from aerosols and negligible influence from changes to solar output, volcanoes, and internal variability. Third chart: about 1.25C of warming from CO2, 0.5C from methane, and a bunch more in small quantities from other gases. About 0.5C of cooling with large error bars from SO2.

Recommended actions to cut greenhouse gas emissions in the near future:

Anti-science, inactivism, and unsupported conspiracy theories are not ok here.

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