Mastodawn

FriendlyEMP (he/him)Jan 13

Thinking of making a career change. Been tinkering with #linux since high school, thinking it'd be a great basis for a new career. Any advice on where to start? No certs or college education, based in the US.

Non-Euclidean Dreamer Jan 13

#genuary13 prompt: Triangles

Forming a Hyperbolic honeycomb, because I can. 😎

#genuary2025 #GENUARY

Truth Or Consequences ✅ 🇺🇦Jan 12

Not to mention they are bald and bought their hair.

Scientists developed the first climate models in the late 1960s (for which the Nobel Prize in physics was recently awarded!).

How have these models held up against what happened in the real world after they were published? Surprisingly well, it turns out:

Aras Pranckevičius Jan 13

34 years ago. Through some miraculous chain of events, Lithuania broke out of USSR with only this, instead of full-on military intervention. https://en.wikipedia.org/wiki/January_Events

January Events - Wikipedia

AJ Sadauskas Jan 12

CONFIRMED: Facebook has *banned* anyone from linking to Pixelfed. #MetaBlockingPixelfed I just tried posting a message on Facebook that reads: "Anyone here using Pixelfed?" with a link to Pixelfed.Social Within *seconds* I got a post saying my post was banned. Screenshots below.

Bluesky

Bluesky Social

Worf Email Nov 9, 2024

Security personnel,

Fight Club is canceled this week.

Worf

https://www.wsj.com/world/diary-of-a-dead-north-korean-soldier-reveals-grisly-battlefield-tactics-fafbede7

Hanse Mina Jan 13

The crude stick-figure diagram, sketched in blue ink, details how North Korean soldiers deployed to support Russia in the Ukraine war should respond to the approach of a Ukrainian drone. One acts as a bait while others try to shoot the drone down.

#Ukraine #Russia #NorthKorea

Keith D Johnson Jan 13

https://www.fire.ca.gov/incidents
#CALFIRE #California #wildfires #Facebook

Covidiocracy Jan 13

It’s a shame there’s such an overwhelming amount of #misinformation, #disinformation, and #lies. Legitimate sources constantly have to spend time debunking it all.

Earlier today, #Oregon had to issue a press release debunking right-wing lies that their firefighters were blocked from entering CA. Now here’s Cal Fire having to tell everyone “no, this *other* stupid bullshit you saw on Facebook isn’t true either.”

Incidents | CAL FIRE

Ongoing emergency responses in California, including all 10+ acre wildfires.

Scientists developed the first climate models in the late 1960s (for which the Nobel Prize in physics was recently awarded!).

How have these models held up against what happened in the real world after they were published? Surprisingly well, it turns out:

A few models ran too cool (Rasool and Schneider 1971) and a bit too hot (Nordhaus 1977), but most were pretty spot on with what actually occurred. We explored these in a paper a few years back in Geophysical Research Letters: https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2019GL085378

In our paper we looked both at a comparison of temperatures vs observations over time, but also the relationship between temperature and forcing in models and observations. The latter tries to account for misspecified future emissions in a climate model.

You could have a perfectly accurate climate model in 1970 (not that we did!) and still produce an incorrect forecast if you assumed we'd be at 520 ppm CO2 in 2020 instead of 420 ppm! This applies well to Hansen 1988 scenarios A and B, which overestimate future forcing compared to what occurred:

In this case, for example, Hansen 1988 got CO2 just about right, but overestimated future methane and halocarbon emissions (which were subsequently cut by the successful Montreal protocol to protect the ozone layer):

Predicting the future is hard, but climate models have a remarkably good record doing so (at least so far!), as we noted in the recent IPCC 6th Assessment report (WG1, chapter 1): https://www.ipcc.ch/report/ar6/wg1/downloads/report/IPCC_AR6_WGI_Chapter01.pdf

Ariaflame Jan 13

@hausfath There's a reason of course that there were several scenarios for 'what if we do X' options.

levampyre Jan 13

@hausfath The colour distinction in this graphic is horrible. Light brown next to a little less light brown, together with grey, lighter grey and rather light grey. That's really hard to read.