#enhancedweathering — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #enhancedweathering, aggregated by home.social.
-
Not wanting to come across callous but...
do climate models incorporate enhanced weathering from these impacts on mountains?
I mean, rockslides and mountainslides like in the Alpes– or the outburst of glacial lakes with forceful water masses rushing across rocky terrain like here in the Himalaya https://www.independent.co.uk/climate-change/news/nepal-glacial-burst-collapse-floods-border-b2789199.html
– are increasing.
As is heavy precipitation – an ingredient for rockslides as well as for enhanced weathering.
Isn't this a recipe for rapid enhanced CO2 weathering?
And how much CO2 are we talking here? -
#WeekendReading: Gernon et al. show that #EnhancedWeathering of mafic rocks during continental breakup and early seafloor spreading could drive a succession of #anoxic events.
The interactions between #weathering feedback and #ClimateChange are not straightforward.
(Also, remember - weathering releases nutrients) -
This afternoon's bike trip was a 37 km round trip in one hour and ten minutes to collect a 20 kg sack of "greensand" olivine for the garden.
I think it's a good example of the efficiency of velomobiles: how they make human power even more effective than when riding a normal bike. Even on the return journey with a headwind and loaded with the sack of sand, it was easy to keep the speed above 35 km/h.
Being able to stow a lot of things inside the aerodynamic form of the bike helps a lot with efficiency. You feel extra weight when accelerating, not so much once you get going.
And why the olivine ? I calculated a few weeks back that in the worst case this last winter our heating could have emitted 105 kg of CO2. This sack is enough to absorb about a fifth of that amount from the atmosphere.
Each time we plant things indoors or in our garden we add a bit of olivine.
Once humanity (especially those of us in the highly emitting richer countries) has reduced emissions by a lot, it's possible to make a bit of a dent by using a product like this. But there's no chance of compensating for ever larger emissions by trying to mine ever larger amounts of olivine.
#recumbent #velomobile #regel17 #cycling #biketooter #olivine #greensand #weathering #enhancedweathering
-
"enhanced weathering (EW) of silicate rocks … on farmlands is a promising scalable atmospheric carbon dioxide removal (CDR) strategy"
https://www.pnas.org/doi/full/10.1073/pnas.2319436121
"modeling suggests that deployment of EW … worldwide could sequester up to two billion metric tons of CO2 annually"
Not bad. But not nearly enough regarding around 37 billion metric tons of CO2 emissions worldwide every year: https://www.statista.com/statistics/276629/global-co2-emissions/
#EnhancedWeathering #Basalt #ClimateCrisis #CarbonCaptureStorage #CCS
-
And then, after one final reminder that the city will officially be worshipping fossil fuel next week, I got back home, with a loaf of bread for my lunch picked up in the city centre and a 20 kg sack of olivine ("greensand") which will eventually absorb about 20 kg of CO2 when I use it in the garden. I don't use any fossil fuels, but others unfortunately still do. It seems better to buy this stuff to dilute our home-made compost than other things which are more environmentally destructive.
#velomobile #regel17 #cycling #biketooter #weathering #enhancedweathering #olivine #greensand -
This morning's exercise ride was a 34 km round trip to collect another 20 kg sack of greensand. We've been using it with our house-plants, mixed with compost from the garden to start tomatoes, and here in the front garden it's levelled up the ground above our potatoes.
Over time, each sack permanently removes 20 kg of CO2 from the atmosphere and the process is beneficial to growing plants.
Three sacks make a very small difference to our historical emissions, but if I'm going to buy soil of some kind for the garden it may as well be this. I certainly won't buy #peat which would help to destroy an ecosystem somewhere and release CO2 into the atmosphere.
#olivine #greensand #weathering #enhancedweathering #regel17 -
Photos of this morning's recreational ride. It took an hour and ten minutes to ride 37 km, my average speed being pulled down by riding slowly into a farmyard at around the half way point to buy another 20 kg sack of olivine.
We've been using this sand-like ground up olivine in pot plants indoors and also in the garden to fill gaps.
Plants seem to grow well in it.
Olivine is one of several minerals which absorb CO2 from the air as they weather so my feeling is that if I'm going to spend money on something to put in the garden or use for planting indoors, why not use olivine which has a small positive effect on the climate?
#regel17 #velomobile #cycling #netherlands #bicycle #greensand #olivine #weathering #enhancedweathering #BikeTooter -
For carbon dioxide removal (#CDR), does anyone else think of #EnhancedWeathering, which is usually thought of as a terrestrial technique, as just another way to eventually add #alkalinity to the #ocean so it's really ocean CDR and #OceanAlkalinityEnhancement (#OAE)?
-
New blog by Carbon Drawdown Initiative, showing what #EnhancedWeathering looks like, with pictures from experiments around the world.
More than 50.000 tons of silicate materials were applied in 2022 and more than 500.000 tons are planned for 2023!
Including our experiments in Antwerp that are also on instagram: https://www.instagram.com/enhancedweatheringrocks/
-
@leahstokes I work on terrestrial #carbon and nutrient cycling. Currently focussing on land-based CO2 removal #CDR, especially #EnhancedWeathering.
-
Moved to #fediscience.
I am a scientist with a background in terrestrial #carbon and nutrient cycling. Currently leading a team working on land-based CO2 removal #CDR, especially #EnhancedWeathering.
Interested in everything related to #ClimateChange.
#SciComm: mostly climate change outreach and education.
Compiled a climate book (in Dutch): https://www.aspeditions.be/nl-be/book/van-klimaatverandering-naar-systeemverandering-herziene-editie/18939.htm -
Time for a proper #introduction
I am a scientist with a background in terrestrial #carbon and nutrient cycling. Currently leading a team working on land-based CO2 removal #CDR, especially #EnhancedWeathering.
Interested in everything related to #ClimateChange.
#SciComm: mostly climate change outreach and education.
Compiled a climate book (in Dutch): https://www.aspeditions.be/nl-be/book/van-klimaatverandering-naar-systeemverandering-herziene-editie/18939.htm