Geoengineering Info Profile picture
May 13, 2023 7 tweets 5 min read Read on X
🚨NEW PAPER🚨

"Utilization of biochar as a cementitious material aids in CO2 sequestration by impeding the release of C in the atm. So, a recent study reviewed the prospect of #biochar as a #cementitious material by evaluating its physical, mechanical & durability properties."🧵 ImageImage
This research suggested that "the physical properties of #biochar promote its use as an environmental control device."
A summary of the preparation and characterization of biochar is presented in a Fig. ⬇️
2/7 Image
According to the study, #pozzolan is a siliceous & aluminous material
that chemically reacts with Ca(OH)2 at room temp to form compounds having #cementitious attributes. So, some of the silica-rich biochars, like the ones derived from #RiceHusk have pozzolanic properties."
3/7 ImageImage
"The quantity & type of biochar used, the number of curing days & the curing technique all have an impact on the strength of biochar-infused concrete/mortar. However, investigations concluded that biochar used at lower conc. (<5 wt%) produce high-strength mortar+concrete."
4/7 Image
This research recommended that "most of the prior work focuses on the thermal stability of #biochar. However, research on chemical & chloride attacks as well as the ageing & weathering study is scarce. Thus, future work should focus on the aforementioned gaps in knowledge."
5/7
Read the open-access study entitled: Biochar in cementitious material—A review on physical, chemical, mechanical, and durability properties" here ⬇️
aimspress.com/article/doi/10…

#Biochar
#CarbonSequestration
#CementitiousMaterial

6/7 Image

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More from @geoengineering1

Apr 3
🚨🌋 A new UCLA-led study reveals surprising findings about the 2022 Hunga Tonga—Hunga Haʻapai underwater volcanic eruption. Despite fears it would push global temps past 1.5°C, it actually cooled the Southern Hemisphere by 0.1°C!

Here's why:🧵1/8
#SolarGeoengineering #Aerosols Image
2/ When Hunga Tonga erupted in January 2022, scientists expected the massive release of water vapor to trigger warming, but a key factor shifted: The eruption produced smaller sulfate aerosols that unexpectedly cooled the atmosphere!
3/ Traditionally, sulfate aerosols cool the Earth by reflecting sunlight, while water vapor warms it. The eruption's aerosols were 50% smaller than those from previous eruptions (like Pinatubo, 1991), which made them more efficient at cooling! Image
Read 9 tweets
Apr 1
🚨🗓CDR REMINDERS!🗓🚨

Here's a list of what's coming up this week (01 April - 07 April 2025) in the field of #CarbonDioxideRemoval:

🔗🗓️Link to the CDR Events Calendar:


#CDREvents #CDRJobs #Deadlines

🧵1/14 teamup.com/kshqbfhrqkw36s…Image
EVENT—What's moving in 2025: Actionable insights for an effective carbon credit strategy by @SylveraCarbon

🗓01 April 2025 | Online
🔗

2/14info.sylvera.com/webinar-whats-…
EVENT—Carbon Dioxide (CO2) Underground Storage: Technology, Uncertainties & Risks by Georgia Tech

🗓01 April 2025 | Online
🔗

3/14gatech.zoom.us/meeting/regist…
Read 17 tweets
Mar 31
📝💡𝐖𝐞𝐞𝐤𝐥𝐲 𝐂𝐃𝐑 𝐇𝐢𝐠𝐡𝐥𝐢𝐠𝐡𝐭𝐬💡📝

📰 Here's your round-up of top #CarbonDioxideRemoval News / Developments from this week (24 March - 30 March 2025):

🔗:

🧵0/20
Stockholm Exergi announced its decision to build one of the world’s largest BECCS facilities, a $1.3B project set to remove ~800,000 tonnes of CO₂ annually and be operational by 2028.


1/20beccs.se/news/stockholm…
Enhanced rock weathering startup @EionCarbon secured $33M carbon removal offtake deal with Frontier to remove 78,707 tons of CO₂ (2027–2030) by applying olivine on U.S. Midwest and South farmland.

2/20
frontierclimate.com/writing/eion
Read 23 tweets
Mar 26
🚨How do political affiliations shape attitudes toward #SolarGeoengineering?🚨

A conjoint experiment with 2,123 US voters finds that partisanship outweighs message framing—meaning who delivers the message matters more than what the message says.

DETAILS🧵1/9 Image
2/ The discourse on SG as a climate solution is evolving, but public perceptions—especially in the polarized US landscape—remain underexplored. This study () examines how different narratives & partisan sources influence attitudes.nature.com/articles/s4416…
3/Researchers tested 3 SG narratives:

-Complementary: SG as an add-on to emissions cuts

-Substitutive: SG as a standalone climate solution

-Moral hazard: SG as a risky distraction

& the source(Democratic or Republican, researcher or podcaster) to simulate a realistic info env
Read 11 tweets
Mar 25
🚨🗓CDR REMINDERS!🗓🚨

Here's a list of what's coming up this week (25 March - 31 March 2025) in the field of #CarbonDioxideRemoval:

🔗🗓️Link to the CDR Events Calendar:


#CDREvents #CDRJobs #Deadlines

🧵1/15teamup.com/kshqbfhrqkw36s…
EVENT—Carbon Removal for Net Zero—From Science to Action by @gosupercritical

🗓25 March 2025 | London
🔗

2/15climate.gosupercritical.com/carbon-removal…
EVENT—Ocean Visions Biennial Summit 2025

🗓25-27 March 2025 | British Columbia
🔗

3/15oceanvisions.org/events/summit-…
Read 17 tweets
Mar 23
📝💡𝐖𝐞𝐞𝐤𝐥𝐲 𝐂𝐃𝐑 𝐇𝐢𝐠𝐡𝐥𝐢𝐠𝐡𝐭𝐬💡📝

📰 Here's your round-up of top #CarbonDioxideRemoval News / Developments from this week (17 March - 23 March 2025):

🔗:

🧵0/21
BlueShift company that aims to unlock sustainable, domestic critical mineral supplies while providing affordable ocean carbon removal exited stealth with $2.1M in pre-seed funding.

1/21
globenewswire.com/news-release/2…
Seattle-area startup Homeostasis has secured a $600,000 pre-seed investment to develop technology that removes atmospheric CO₂ and converts it into graphite, which has industrial uses.

2/21
geekwire.com/2025/seattle-a…
Read 24 tweets

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