[-] [email protected] 0 points 1 week ago* (last edited 1 week ago)

We are not making anyone move. I and the rest of the mods but wabooti who is MIA for 8 months have already left. It's a courtesy notice to the community. Whether wabooti will continue is up to him. I will just stay here long enough for the discussion, if any.

You can of course make your own collapse community (with blackjack and hookers) but perhaps pick an instance where the admins are not overshoot deniers. It seems though you don't quite understand the significance of that "slap on the wrist".

[-] [email protected] 1 points 1 week ago

Thank you for confirming the core point of the paper.

[-] [email protected] 0 points 1 week ago

My pleasure. Obviously a community discussing collapse can't stay in a place which denies overshoot of the ecosystem carrying capacity. The Reese paper doesn't say a thing about eugenics.

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submitted 1 week ago* (last edited 1 week ago) by [email protected] to c/[email protected]

Because of admin interference with the content https://lemmy.ml/modlog/16033 and disciplinary actions we obviously can't stay here.

We've set up shop on http://lemm.ee/c/collapse [email protected] so please update your subscription if you intend to continue to follow this community.

At some point this community will be mothballed, unless [email protected] wants to continue taking care of it.

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#278: Of facts and gambits (surplusenergyeconomics.wordpress.com)
submitted 4 weeks ago by [email protected] to c/[email protected]
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submitted 4 weeks ago* (last edited 4 weeks ago) by [email protected] to c/[email protected]

Significance

Technological innovation is central to sustainable development, but representing novel technologies in systems models is difficult due to limited data on their past performance. We propose a method to model the feasibility space for novel technologies that combines empirical data on historical analogs and early adoption with a global integrated assessment model. Applying this method to direct air carbon capture and storage (DACCS), we find that the feasibility space is large, with DACCS contributing meaningfully to net-zero goals if it grows like some analogs and failing to do so with others. The results can be used to identify technology and policy features that may be important in enabling rapid adoption to avert the worst effects of climate change.

Abstract

Limiting the rise in global temperature to 1.5 °C will rely, in part, on technologies to remove CO2 from the atmosphere. However, many carbon dioxide removal (CDR) technologies are in the early stages of development, and there is limited data to inform predictions of their future adoption. Here, we present an approach to model adoption of early-stage technologies such as CDR and apply it to direct air carbon capture and storage (DACCS). Our approach combines empirical data on historical technology analogs and early adoption indicators to model a range of feasible growth pathways. We use these pathways as inputs to an integrated assessment model (the Global Change Analysis Model, GCAM) and evaluate their effects under an emissions policy to limit end-of-century temperature change to 1.5 °C. Adoption varies widely across analogs, which share different strategic similarities with DACCS. If DACCS growth mirrors high-growth analogs (e.g., solar photovoltaics), it can reach up to 4.9 GtCO2 removal by midcentury, compared to as low as 0.2 GtCO2 for low-growth analogs (e.g., natural gas pipelines). For these slower growing analogs, unabated fossil fuel generation in 2050 is reduced by 44% compared to high-growth analogs, with implications for energy investments and stranded assets. Residual emissions at the end of the century are also substantially lower (by up to 43% and 34% in transportation and industry) under lower DACCS scenarios. The large variation in growth rates observed for different analogs can also point to policy takeaways for enabling DACCS.

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submitted 4 weeks ago by [email protected] to c/[email protected]
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submitted 4 weeks ago by [email protected] to c/[email protected]
[-] [email protected] 3 points 1 month ago

They do get released. I need a source of high quality rips for the NAS to stream from.

[-] [email protected] 1 points 1 month ago

Still no blu ray last time I checked.

[-] [email protected] 3 points 1 month ago

Globally, you probably are. It doesn't take that much to qualify. There is a website to check via income.

[-] [email protected] 2 points 1 month ago

Too bad we're already over 1.5 C though it will take a decade for it to be official.

[-] [email protected] 3 points 1 month ago* (last edited 1 month ago)

Ok, if you don't use their web site you won't see the UX dark patterns. Trust us, they there and fit with the overall garbagefication theme. Annoys the living shit out of me. At least no more Prime Video UI and ad trainwreck.

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submitted 1 month ago by [email protected] to c/[email protected]
[-] [email protected] 12 points 1 month ago

If you haven't noticed, you've been not paying attention. I canceled Prime a while ago and they try very hard to get you back. And they try to sneak on you billed expedited shipping when over minimum gratis shipping quota. Dark patterns galore.

It would be a major pain for me to boycott them completely so I don't, yet.

[-] [email protected] 2 points 1 month ago

Nobody is using MMF these days even for local runs. As to sfp, check https://fs.com and pick a matching pair that is cheapest. These days it makes sense to use 10G or 25G rather than 1G. Some people run 100G for their homelab, but even used it's pricy and noisy.

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submitted 1 month ago* (last edited 1 month ago) by [email protected] to c/[email protected]

Abstract

Total Solar Irradiance (TSI) quantifies the solar energy received by the Earth and therefore is of direct relevance for a possible solar influence on climate change on Earth. We analyse the TSI space measurements from 1991 to 2021, and we derive a regression model that reproduces the measured daily TSI variations with a Root Mean Square Error (RMSE) of 0.17 W/m2. The daily TSI regression model uses the MgII core to wing ratio as a facular brightening proxy and the Photometric Sunspot Index (PSI) as a measure of sunspot darkening. We reconstruct the annual mean TSI backwards to 1700 based on the Sunspot Number (SN), calibrated on the space measurements with an RMSE of 0.086 W/m2. The analysis of the 11 year running mean TSI reconstruction confirms the existence of a 105 year Gleissberg cycle. The TSI level of the current grand minimum is only about 0.15 W/m2 higher than the TSI level of the grand minimum in the beginning of the 18th century.

Keywords: total solar irradiance; sunspot number

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[-] [email protected] 2 points 1 month ago

IBM does 60 deg C watercooling which can be not a lot of thermal delta in nonarctic environments. It's a lot of km of infrastructure to vent directly if you want to dissipate a nuclear reactor's worth of power in a single site.

[-] [email protected] 3 points 1 month ago

Notice you have to cool both in the power plant and the DC. And these DCs run up to a GW or more.

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eleitl

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