Mastodawn

https://www.dunedin.govt.nz/news-and-events/news/october-2025/hexagonal-protection-for-taieri-mouth-road-and-beach

Dunedin Council has installed hexagonal, fibre-reinforced concrete modules for erosion control on a section of Taieri Mouth road. They're made in NZ and will eventually be planted with natives.

#NZ #Erosion #TaieriMouth

BellingenNSW Oct 6

"Sea level rise (SLR)
poses a prominent challenge to current and future generations, impacting the habitability of coastlines, trade routes, and major infrastructure systems near the ocean."

"Our results highlight geographic variability in exposure and demonstrate the benefits that low-emissions pathways imply for preserving built environments."
>>
Willard-Stepan, M., Gomez, N., Cardille, J.A. et al. Assessing the exposure of buildings to long-term sea level rise across the Global South. npj Urban Sustain 5, 72 (2025). https://doi.org/10.1038/s42949-025-00259-z
#FossilFuels #coast #inundation #SeaLevelRise #SLR #CoastalInfrastructure #infrastructure #habitability #erosion #ClimateDisruption

Thünen-Institut Oct 2

💪 #Humus ist ein echter Alleskönner: Er speichert Wasser und Nährstoffe, schützt vor #Erosion und fördert das Bodenleben – und er hilft dem #Klima!

🌱 Doch wie können wir den Humus in unseren Böden vermehren?
🪱 Humus wird aufgebaut, wenn mehr Pflanzenmaterial und organische Dünger im Boden landen, als abgebaut werden.
Wir stellen die wichtigsten Ansätze vor, um Humus zu erhalten und zu mehren.
👉 https://t1p.de/thuenen_Humus

#Bodengesundheit #Landwirtschaft #Klimaschutz #BoedenunterDruck

Wen Sep 29

Britains first commercial (albeit small scale) experiment with rice in the Fens.

I wonder how well it will deal with brackish water?

#Environment #ClimateChange #Erosion #Rice #Farming #UK

Bagolina Sep 22

#Érosion du #littoral en #Guyane : « Les populations se sont toujours adaptées »
https://www.mediapart.fr/journal/ecologie/200925/erosion-du-littoral-en-guyane-les-populations-se-sont-toujours-adaptees
L’#anthropologue Marianne Palisse a codirigé le livre « Habiter le littoral des #Guyanes. S’adapter au changement ? » En dix chapitres, l’ouvrage décrit comment les habitants ont développé à travers le temps des modes de vie en cohérence avec le mouvement du trait de côte local, un des plus instables au monde

Érosion du littoral en Guyane : « Les populations se sont toujours adaptées »

L’anthropologue Marianne Palisse a codirigé le livre « Habiter le littoral des Guyanes. S’adapter au changement ? » En dix chapitres, l’ouvrage décrit comment les habitants ont développé à travers le temps des modes de vie en cohérence avec le mouvement du trait de côte local, un des plus instables au monde.

Mediapart

https://www.dunedin.govt.nz/news-and-events/news/october-2025/hexagonal-protection-for-taieri-mouth-road-and-beach

Dunedin Council has installed hexagonal, fibre-reinforced concrete modules for erosion control on a section of Taieri Mouth road. They're made in NZ and will eventually be planted with natives.

#NZ #Erosion #TaieriMouth

MoveFastAndFixThings Oct 6

@BobLefridge any idea what the fibre is? Glass I’m guessing, really hope it isn’t plastic …

It's not mentioned in the press release. Hopefully an inspired journalist will ask a few questions.

They'd score bonus points if they used hemp fibre.

@gwilymgj

Robyn Oct 6

@BobLefridge
I usually think of biodegradability as a good thing, but this doesn't strike me as the best use case for reinforcing that rots in the wet
@gwilymgj

@RedRobyn @BobLefridge @gwilymgj

Worik Oct 6

I will second that

Biodegradable material does not belong in concrete

Hempcrete is a very bad idea.

Surely the fibre is protected when its stranded within concrete? People build low-impact eco-houses using a form of hemp-crete and they don't rot.

@RedRobyn @gwilymgj

Robyn Oct 7

@BobLefridge
Concrete is porous, which is why so many basement conversions are so unhealthy. Concrete retaining walls need a damp-proof membrane between them and the earth behind them if they are to be enclosed in an interior space. These eco-reef things are meant to be submerged in water.
Whilst I don't have a lot of knowledge of hempcrete I have a strong suspicion it's like straw bale, rammed earth and adobe houses. Which, the wishful thinking of various alternative lifestylers notwithstanding, are not suitable for all climates. You can do a certain amount with clever design, and high quality waterproof coatings. but if there's something in there that needs to be kept quite dry to maintain structural integrity its really only suitable for a desert. At least hempcrete doesn't make a rodent habitat the way straw bale houses do.
@gwilymgj