aoner

5 ms·

1.
by aoner 5y ago
Thank you for your thorough post. There are alternative models, such as biocyclic veganic agriculture, or in the future, foods created through fermentation [1] (this almost require no arable land). I recommend checking them out if you are i
2.
by aoner 7y ago
Would be more than a plant based diet since there are more chains in between where plastic can accumulate (similar to heavy metals in fish)
3.
by aoner 7y ago
https://www.climate.careers/
4.
by aoner 7y ago
There is a great mini documentary made that tries to answer this question https://m.youtube.com/watch?v=uD4izuDMUQA
5.
by aoner 7y ago
I think you are underestimating the scale of our cattle. The majority of deforestation is due to cattle [1]. The world is basically dominated by us and our cattle [2] leading to massive losses in biodiversity [3]. If everyone in the world w
6.
by aoner 7y ago
I haven't dived into plant-based milks and health risks/benefits too much. What I can tell you is that Animal based Milk in general is not healthy, they are high in saturated fats, have a too high calcium and estrogen concentratio
7.
by aoner 7y ago
If plants suffer this is actually an argument FOR plant-based diets, since less plants/sentient beings suffer. Meat is a super in-efficient (land/water/energy consumption) way of turning plants, which are already food, into f
8.
by aoner 7y ago
I synthetic fuels are a temporary solution for cars. If you are changing car infrastructure, IMO it makes most sense to switch over to electricity (highest efficiency and you can use electrical car batteries to stabilize the grid). Syntheti
9.
by aoner 7y ago
I think you're making an incorrect comparison. This is basically an energy storage system. What you could do is compare the EROI of the energy source that provided it (say wind-energy) and factor in the process efficiency and compare t
10.
by aoner 7y ago
There's a great profile on Australia’s complex climate politics and rising fossil fuel exports made by carbonbrief: https://www.carbonbrief.org/the-carbon-brief-profile-austral... Highly recommended Australia had the
11.
by aoner 7y ago
This is a super interesting in depth article on the current state of climate policy, energy systems etc in Australia: https://www.carbonbrief.org/the-carbon-brief-profile-austral... I highly recommend carbonbrief in general
12.
by aoner 7y ago
An important point that people are missing is that by capturing carbon directly from the air with electricity we can combine two very important energy systems: electrical and chemical. Going 100% renawable at an accelerated pace is within r
13.
by aoner 7y ago
This is such a common misconception. US per capita emissions are around 15 tons and China is around 7 tons. And don't forget that there is a lot of creative accounting going on. All carbon emissions are "exported" by making
14.
by aoner 7y ago
Don't forget that there are also low temperature DAC routes that can use waste heat (climeworks, global thermostat, antecy, skytree). If you get the heat for free you only need energy for your fans. This drastically reduces the price.
15.
by aoner 7y ago
Slightly off-topic: am I the only one noticing massive amounts of fake accounts that are into climate denying?
16.
by aoner 7y ago
Check out carbon engineering[1]. They are using direct air capture and hydrogen to create synthetic fuels using a fischer-tropsch like process. https://www.carbonengineering.com/
17.
by aoner 7y ago
There is a company in the netherlands that uses excessive heat with a similar idea to create air conditioning (SoundEnergy BV[1]). Unfortunately I can't really find a good English article explaining the principle but it's like a s
18.
by aoner 8y ago
Afforestation is part of the solution but even if we would plant a lot of trees and not use them, this solution does not scale. Current most optimistic estimates think trees can sequester 600 GtCO2 by 2050 max while most estimated think thi
19.
by aoner 8y ago
I've definetly come across charm industrial :). What is your plan on the negative emissions part? Underground CCS or do you have utilization plans?
20.
by aoner 8y ago
I've read a lot of papers about negative emissions. My main take-away was: 1. It will be necessary 2. We can solve part of the problem with cheaper/easier solutions like trees and ocean farming, but we will need more technological
21.
by aoner 8y ago
If you are interested in negative emissions this is the best review paper I've come across so far that covers all various negative emission technologies, from trees and oceans to bio-energy with carbon capture storage (BECSS) and direc
22.
by aoner 8y ago
Modern heat pumps are still highly efficient at 40F (4C) the coefficient of performance is 4+ at this temperature. We switched from an hybrid set to a full-electric setup (also PV and solar thermal) and are super happy with (live in Amsterd
23.
by aoner 8y ago
We ditched our gas and have an air to water heat pump, costed around €6000 ex subsidies (I live in Amsterdam so not the coldest weather, we also have solar thermal and PV). However air to water heat pumps are also applicable in cold climate
24.
by aoner 8y ago
Air to water heat pumps are also used in harser climates. If you're interested here is an example datasheet of an air to water heat pump (2018) (using Celsius here): PUHZ-SHW112YAA Guaranteed operating range (outdoor): Heating: -28 to
25.
by aoner 8y ago
Direct Air Capture (capturing CO2 right from the air and utilising it in the form of synthetic fuels, building materials, polymers and more)
26.
by aoner 8y ago
Just use an air to water heat pump. We've got one installed in the netherlands, costs was about €6k (ex subsidies) and we're disconnected from the gas supply. The newest generations can go up to -25 degrees celcius (look up Mitsub
27.
by aoner 8y ago
I recently looked into the literature and I think the evidence is ambiguous [1] If you've found some clear evidence supporting your case, could you point me in the right direction? [1] https://www.researchgate.net/profil
28.
by aoner 8y ago
Or make direct fuels out of it :P /s (that would not work, otherwise you've created a perpetuum mobile). Would be interesting if you could use your car's surface as a kind of anode.
29.
by aoner 8y ago
I'm also not sure how much of a big win the drones are. Proper forest management is probably way more important. So protecting against illegal logging and making sure that whenever trees are almost dying to take them out so that they d
30.
by aoner 8y ago
Curious, how does desert flooding fit into this? It's basically energy creation using hydro or am I missing the point here? Edit: Never mind, missed the YC dessert flooding article: >> This system of oases would be used to grow p

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