🏭 Climate-neutral? Only with massive CO₂ removal
The #CDRterra factsheet shows results from ten research consortia involving ESRAH and #CLICCS on land-based #CO2Removal in Germany – potentials, risks, and implementation barriers.
👉 https://www.esrah.uni-hamburg.de/about/news/06-news-2025/2025-12-09-cdrterra-research-project.html
#FYI #SabineHossenfelder video lecture and literature review
"According to the New York Times, carbon dioxide removal tech is “the new climate gold rush.” Investors have poured billions of dollars into the tech, and market analysts predict that it might become a trillion-dollar industry. But does reality match the hype? Let’s look at what the numbers really say."
#fossilfuels #Co2 #Co2Emissions #methane #GreenhouseGases #science #sciencenews #climate #technology #CO2removal
#FYI #COP29 #Baku #EmissionReduction #CO2Removal #ClimateRepair #ClimateEmergencyForum
"The panel features experts [...] explore innovative approaches to climate change that extend beyond traditional emissions reduction strategies, emphasizing the urgent need for greenhouse gas removal and adaptation measures to combat the escalating #climatecrisis."
https://www.youtube.com/watch?v=KeVs-I7Xt5A
#climate #ClimateScience #ClimateEmergency #ClimateBreakdown #climatecatastrophe
Downside: full text search will never fully work in the Fediverse. If my instance doesn't know of a post on your instance I'll never find your interesting words unless maybe you tagged them meaningfully with
#CO2removal
, plus my instance follows that hashtag on a big-enough relay,
plus I search for that # instead of for the word only.
The relay being big enough means: it has to know your post. If it doesn't, my instance following the #CO2removal on the relay won't be able to find your post either.
This knowledge gap is not in the architecture of Bluesky. But its resource use therefore is simply prohibitive for meaningful decentralisation purposes that really do curb the power exerted by single software developer or hosters.
Invitingly provocative but with factual underpinnings that will endure after heat is dissipated.
"Recently, many studies have touted the idea of planting trees as a natural means of climate mitigation...Initial estimates were strongly criticized for their false assumptions...but many of the critiques also failed to acknowledge that at least a century of work has documented successful tree planting..."
Reasons asserted, practical steps suggested:
https://www.frontiersin.org/articles/10.3389/ffgc.2024.1372409/full
On the other side of the reforestation debate are studies touting the abilities of naturally regenerated forests to come back on "abandoned" lands on their own with little assistance from humans (Chazdon and Guariguata 2016;Cook-Patton et al. 2020). No planting necessary. Such evaluations have been published as global or regional analyses of potential lands that can naturally revegetate; but again, these analyses have largely come from researchers who used a biological lens and evaluated possibilities remotely and through secondary literature. Natural forest regeneration certainly has occurred on some abandoned land, but analyses advocating this phenomenon assume that all open land identified via remote sensing is abandoned and available regardless of location (Griscom et al. 2017;Gvein et al. 2023;Zheng et al. 2023) and that the socio-economic context can be planned and promoted to provide the right conditions for facilitating successional regrowth (Chazdon et al. 2020). In most circumstances these assumptions are wrong: land that is perceived as abandoned is often in fallow and will be cultivated again; and when sustained natural regrowth does occur, it is often due to unplanned local conditions and driven by external factors such as conflict, economic transition, and population migration (Sloan 2022;Holl et al. 2022). On some apparently abandoned lands, regrowth has not come back because the site and soil cannot sustain tree survival (e.g. arid lands) or the site is una...
A recent paper in Science assesses the sustainability risks of land-based #CO2Removal techniques.
Unsurprisingly, land-based #CarbonDioxideRemoval is not only inefficient, but also not sustainable, with negative impacts on biodiversity, freshwater use and food production.
CO2 removal should be deployed only with careful consideration of its potential impacts. Much better (and cheaper) is to prioritize CO2 emission reductions.
#cllimatechange
https://znetwork.org/znetarticle/why-we-cannot-rely-on-land-based-co%E2%82%82-removal-to-address-the-climate-and-biodiversity-crises/
ESRAH University of Hamburg
Ivi Choc
anlomedad
Doug Bostrom
ZNet (unofficial)
hugovangalen 🤖 🕹️ 😼
Bryan 
Calckey 
Matt Willemsen
Sabin Center