Discover and read the best of Twitter Threads about #oae

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๐ŸšจNEW STUDY๐Ÿšจ

Recent analysis published in @naturesustainab โ€œuse #biogeochemical simulations to show that restoration of the marine ecosystems can lead to permanent #CO2Removal by driving #OceanAlkalinityEnhancement & atmosphere-to-ocean #CO2Fluxes.โ€

Key findings in a๐Ÿงตโฌ‡๏ธ
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Findings of this study suggest that โ€œrestoring mangroves, which are common in tropical shallow marine settings, will lead to notable local #OceanAlkalinityEnhancement across a wide range of scenarios.โ€
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โ€œThe process is seagrass & mangroves influence the organic & inorganic cycling of C in sediment, with strong impacts on diffusive #alkalinity fluxes. In carbonate-rich sediment, seagrass & mangroves foster carbonate dissolution, resulting in increased alkalinity production...
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Read 12 tweets
๐Ÿšจ๐‘๐„๐•๐ˆ๐„๐– ๐๐€๐๐„๐‘๐Ÿšจ

"The recent review article discusses the basic operation of the marine #CarbonCycle & 2 #mCDR methods that are "thought to offer the greatest potential in terms of #CDR mass:
๐ŸŒŠ#OceanIronFertilization
&
๐ŸŒŠ#OceanAlkalinityEnhancement."

๐Ÿงต
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Various conclusions were drawn in the review which are enlisted below:

1๏ธโƒฃ "The alkalinity of the ocean creates a massive increase in the oceanโ€™s capacity to #store #carbon, relative to a scenario without #OceanAlkalinity."
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2๏ธโƒฃ "Ocean warming causes decreases in both #CO2 #solubility and the Revelle factor (B), which make the ocean less efficient at #absorbing CO2."
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Read 14 tweets
๐ŸšจTHESIS๐Ÿšจ
An analysis of published data exploring the effects of high pH on #phytoplankton growth rate & experimental assessment of pH dependence of viability & growth rate was used in a "lately published thesis" to assess potential impacts of #OceanAlkalinityEnhancement.
๐Ÿงต
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๐Ÿ“‰ The results from this study suggest that there will be no significant impact on the viability or growth rates of Thalassiosira pseudonana or Pavlova lutheri with short-term (10-minute) exposure to elevated #pH.ย 
#OAE
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However, when long-term (days) exposure occurs there is a significant decrease in growth rates with high pH. Short-term exposure is predicted to more closely mirror the natural systems in which #OAE will be implemented because of system flushing & replenishment of nutrients.ย 
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