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OKIsItJustMe

(19,938 posts)
Tue Sep 5, 2023, 11:10 AM Sep 2023

A Letter from 200+ World Scientists on Advancing Responsible (R&D) of Ocean-Based (CO₂) Removal

A Letter from 200+ World Scientists on Advancing Responsible Research and Development of Ocean-Based Carbon Dioxide Removal
Society must advance responsible research, development, and field testing of ocean-based carbon dioxide removal techniques to determine their potential to help restore the climate and the ocean.

Current levels of atmospheric carbon dioxide caused primarily by the production and use of fossil fuels are substantially higher than at any point in the last 800,000 years. These current levels have warmed the planet by about 1.1 degrees Celsius on average, with much higher increases in the polar regions. The planet is now seeing devastating effects across Earth systems—perhaps most significantly in our ocean—highlighting the urgency for increased action on climate change.

The ocean has buffered humanity and the biosphere to date from the worst effects of climate disruption by absorbing more than 90 percent of the excess heat trapped on the planet by greenhouse gases and about 26 percent of all carbon dioxide pollution that otherwise would be in the air. But this has come at a great cost. The ocean is experiencing unprecedented destabilizing changes through massive warming, acidification, deoxygenation, and a host of resulting effects. These changes are further undermining the overall stability of our global climate, which is inextricably linked to ocean processes and functions.

Stopping warming requires that we reduce current and future emissions of greenhouse gases at unprecedented rates. This “decarbonization” of our society is an enormous, multi-faceted undertaking that must continue to be of the highest priority and requires significantly increased resources and attention.

At the same time that this essential work of emissions reductions continues, we must also pursue additional solutions that can safely reduce the impacts and outcomes of climate change, including “carbon dioxide removal,” or cleaning up the legacy carbon dioxide pollution trapped in the atmosphere.

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A Letter from 200+ World Scientists on Advancing Responsible (R&D) of Ocean-Based (CO₂) Removal (Original Post) OKIsItJustMe Sep 2023 OP
CO2 + H2O makes Carbonic Acid Ruby Zee Sep 2023 #1
Why? We only care about the land. Right? OKIsItJustMe Sep 2023 #2
This is quite possibly, the most serious route to DAC, DOC (Direct Ocean Capture.) NNadir Sep 2023 #3

Ruby Zee

(170 posts)
1. CO2 + H2O makes Carbonic Acid
Tue Sep 5, 2023, 03:30 PM
Sep 2023

We discussed ocean acidification and heat absorption in a graduate aquatic systems course I took 25 years ago. Nothing much has been done and now we are making the ocean uninhabitable for so many organisms. Destroying the oceans should be terrifying for humanity.

NNadir

(33,545 posts)
3. This is quite possibly, the most serious route to DAC, DOC (Direct Ocean Capture.)
Wed Sep 6, 2023, 08:39 PM
Sep 2023

A leader in this field is the US Navy Scientist Heather Willauer, whose work was commissioned by the Navy to explore making jet fuel at sea using aircraft carrier's nuclear power plants.

I've been following her work for many years.

It involves an electrochemical cell with an ion selective membrane between the electrodes.

It is, I think, one of the best ideas in remediation, particularly if the CO2 can be directed to other purposes as opposed to fuels.

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