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Geoengineering Info Profile picture
@geoengineering1
May 1, 2023 โ€ข 6 tweets โ€ข 8 min read โ€ข Read on X
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๐Ÿšจ๐…๐จ๐ซ #๐‚๐ƒ๐‘ ๐…๐จ๐ฅ๐ค๐ฌ!๐Ÿšจ
ICYM any recent developments in the field of #CarbonDioxideRemoval published btw ๐‰๐š๐ง๐ฎ๐š๐ซ๐ฒ ๐Ÿ๐ŸŽ๐Ÿ๐Ÿ‘ & ๐€๐ฉ๐ซ๐ข๐ฅ ๐Ÿ๐ŸŽ๐Ÿ๐Ÿ‘, here are links to (in๐Ÿงตโฌ‡๏ธ) all pertinent research papers, news articles, reports, thesis, event recordings, & podcasts โฌ‡๏ธ Image
๐Ÿ“† ๐€๐๐‘๐ˆ๐‹

๐Ÿšจ๐Ÿ†•๐ŸŒฑ rb.gy/zcw3p

๐ŸŒฑ rb.gy/dz7ea

๐ŸŒฑ rb.gy/ydck8

๐ŸŒฑ rb.gy/vn7g9

๐ŸŒฑ rb.gy/0rojj

2/6 Image
๐Ÿ“… ๐Œ๐€๐‘๐‚๐‡

๐ŸŒฑ rb.gy/1zjyz

๐ŸŒฑ rb.gy/2v54b

๐ŸŒฑ rb.gy/h1jwn

๐ŸŒฑ rb.gy/v1tmu

3/6 Image
๐Ÿ—“๏ธ ๐…๐„๐๐‘๐”๐€๐‘๐˜

๐ŸŒฑ rb.gy/38uts

๐ŸŒฑ rb.gy/wtx17

๐ŸŒฑ rb.gy/snz5h

๐ŸŒฑ rb.gy/ctmqt

4/6 Image
๐Ÿ—“๏ธ ๐‰๐€๐๐”๐€๐‘๐˜

๐ŸŒฑ rb.gy/badc1

๐ŸŒฑ rb.gy/1ywbw

๐ŸŒฑ rb.gy/xc0o3

๐ŸŒฑ rb.gy/9byhm

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If you want to keep updated with the latest #CarbonDioxideRemoval news, subscribe โžก๏ธrb.gy/0r86d

#DirectAirCapture ๐ŸŽ›๏ธ
#EnhancedWeathering ๐ŸŒฑ๐Ÿšœ
#OceanAlkalinityEnhancement ๐ŸŒŠ
#Afforestation ๐ŸŒณ๐ŸŒฒ
#OceanIronFertilization ๐ŸŒŠ
#Biochar ๐Ÿชจ
#BECCS ๐ŸŒฟ๐ŸŒพ๐Ÿฅœ

6/6 ImageImageImageImage

โ€ข โ€ข โ€ข

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More from @geoengineering1

Geoengineering Info Profile picture
Sep 12
๐ŸšจNew Viewpoint published in Frontiers that responds to Siegert et al.โ€™s paper.

While Siegert et al. warn against polar #geoengineering, Moore et al. argue for a compassionate harm-reduction paradigm, keeping geoengineering research open alongside decarbonization.

Details๐Ÿงต1/12 Image
2/ Siegert et al. [] critically assessed polar geoengineering proposals, urging restraint.

Their case: interventions are risky, may not work, and could distract from the essential task which is deep decarbonization.frontiersin.org/journals/scienโ€ฆ
3/ Moore et al. [] reply that this โ€œconsequences-based paradigmโ€ (raising alarms to spur action), has dominated climate science for 50 years.

Yet emissions remain high, tipping points loom, and Arctic ice is collapsing.frontiersin.org/journals/scienโ€ฆ
Read 13 tweets
Geoengineering Info Profile picture
Sep 10
๐ŸšจNew Nature Geoscience study shows that blooms of Phaeocystis antarctica (microalgae) in the Southern Ocean ~14,000 yrs ago massively drew down COโ‚‚, stabilizing climate. Their decline today could have global consequences.
#CarbonSink #CarbonDrawdown

Details๐Ÿงต1/9 Image
2/ Microalgae are pivotal in the Southern Ocean carbon cycle.

A new study from the Alfred Wegener Institute (AWI) reveals that during the Antarctic Cold Reversal (14.7โ€“12.7k yrs BP), algal blooms slowed the rise of atmospheric COโ‚‚. Image
3/ At the end of the last ice age, the Antarctic Cold Reversal brought vast winter sea ice followed by strong spring melt.

These unique conditions fueled Phaeocystis antarctica blooms, exceptionally efficient at capturing and exporting carbon. Image
Read 10 tweets
Geoengineering Info Profile picture
Sep 5
๐ŸšจNew study finds #SolarGeoengineering methods have divergent hydrological outcomes in China.

Only equatorial Stratospheric Aerosol Injection (#SAI) could mitigate the โ€œNorth-Drought, South-Floodโ€ pattern, while MCB & CCT risk worsening it.

DETAILS๐Ÿงต1/11 Image
2/ Chinaโ€™s hydroclimate is long shaped by the NDSF pattern: aridity in the north, flooding in the south.

Warming threatens to intensify this divide via glacier retreat and stronger monsoon variability.

How would climate interventions alter this? Image
3/ Zhang et al. tested three SRM strategies:

โ€ข SAI (Stratospheric Aerosol Injection)
โ€ข MCB (Marine Cloud Brightening)
โ€ข CCT (Cirrus Cloud Thinning)

All benchmarked against high-emissions (RCP8.5) & moderate mitigation (RCP4.5).
Read 12 tweets
Geoengineering Info Profile picture
Sep 2
๐ŸšจResearchers at the KAIST and the @MIT have developed a new fiber-based material that can capture CO2 directly from the air using only small amounts of electricity, potentially lowering the barriers to large-scale deployment of direct air capture (#DAC) technology.

DETAILS๐Ÿงต1/8 Image
2/ DAC systems, which remove CO2 directly from ambient air, have long been hindered by their high energy requirements.

With atm COโ‚‚ concentrations at less than 400ppm, vast volumes of air must be processed, typically requiring large amounts of heat.
3/ The joint team, led by Professor Ko Dong-yeon of KAIST & Professor T. Alan Hatton of MIT, overcame this limitation by designing an electrically conductive fiber adsorbent (ethylenediamine EDA-Y zeolite/cellulose acetate (CA) fiber) that heats itself through Joule heating. Image
Read 9 tweets
Geoengineering Info Profile picture
Aug 31
๐Ÿ“๐Ÿ’ก๐–๐ž๐ž๐ค๐ฅ๐ฒ ๐‚๐ƒ๐‘ ๐‡๐ข๐ ๐ก๐ฅ๐ข๐ ๐ก๐ญ๐ฌ๐Ÿ’ก๐Ÿ“

๐Ÿ“ฐ Here's your round-up of top #CarbonDioxideRemoval News / Developments from this week (25 August - 31 August 2025):

๐Ÿ”—:

๐Ÿงต0/20
Frontier signed a $31.3M deal with Planetary to scale ocean alkalinity enhancement, aiming to remove 115,211 tCOโ‚‚ at $270/t from 2026โ€“2030.


1/20frontierclimate.com/writing/planetโ€ฆ
Biochar platform Terraton raised $11.5 million seed funding led by Lowercarbon Capital and Gigascale Capital.


2/20reuters.com/press-releasesโ€ฆ
Read 22 tweets
Geoengineering Info Profile picture
Aug 27
๐ŸšจIn a new study published in @OneEarth_CP, researchers reveal that human land activities have stripped away roughly 24% of terrestrial carbon stocks (equivalent to 344 billion metric tons of C), underscoring an urgent need to reframe land-use & climate policy.

Details๐Ÿงต1/10 Image
2/ Plants + soils store more carbon than the atmosphere + all fossil reserves combined.

But farming, grazing, and forest use have stripped away this natural shield, turning land from a carbon bank into a carbon source.
3/ Researchers call this loss the terrestrial carbon deficit - the gap between what ecosystems could hold (โ€˜potentialโ€™) vs. what they actually hold (โ€˜actualโ€™).

The shortfall? 344 PgC (24% of natural stocks). Image
Read 11 tweets

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