this post was submitted on 19 Mar 2024
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Climate - truthful information about climate, related activism and politics.

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Discussion of climate, how it is changing, activism around that, the politics, and the energy systems change we need in order to stabilize things.

As a starting point, the burning of fossil fuels, and to a lesser extent deforestation and release of methane are responsible for the warming in recent decades: Graph of temperature as observed with significant warming, and simulated without added greenhouse gases and other anthropogentic changes, which shows no significant warming

How much each change to the atmosphere has warmed the world: IPCC AR6 Figure 2 - Thee bar charts: first chart: how much each gas has warmed the world.  About 1C of total warming.  Second chart:  about 1.5C of total warming from well-mixed greenhouse gases, offset by 0.4C of cooling from aerosols and negligible influence from changes to solar output, volcanoes, and internal variability.  Third chart: about 1.25C of warming from CO2, 0.5C from methane, and a bunch more in small quantities from other gases.  About 0.5C of cooling with large error bars from SO2.

Recommended actions to cut greenhouse gas emissions in the near future:

Anti-science, inactivism, and unsupported conspiracy theories are not ok here.

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[–] Gormadt@lemmy.blahaj.zone 34 points 1 year ago (3 children)

woo...

We've really got to start doing some drastic measures or we're fucked

[–] kadu@lemmy.world 44 points 1 year ago (3 children)

Sorry to tell you this, but if we suddenly woke up tomorrow and made all the possible drastic changes in a single day, it would take well over a decade for the effects to even start setting in.

The chaos we are living today could only have been prevented by starting many years in the past. So is the reality of very long geological cycles and feedback loops.

[–] Gormadt@lemmy.blahaj.zone 36 points 1 year ago (1 children)

A decade from tomorrow is better than a decade from a decade from now

[–] Coasting0942@reddthat.com 4 points 1 year ago (1 children)

it would take well over a decade for the effects to even start setting in.

lol. Every fascist wannabe around the world would win in a landslide.

[–] umbrella@lemmy.ml 3 points 1 year ago (1 children)
[–] Coasting0942@reddthat.com 8 points 1 year ago (1 children)

As more extreme policies become required, fascists gain power because of the increasing disruption to the way of life that the average person in the region is accustomed to.

“They’re taking away your hamburgers, your cars, etc etc”

[–] umbrella@lemmy.ml 2 points 1 year ago* (last edited 1 year ago)

i think the people who were gonna be fascists anyway are already drunk on that mentality, regardless of what we tell them at this point.

i think theres already a foundation being built in the world's stage to fight back.

i guess we will have to see on that one.

[–] Ultraviolet@lemmy.world 2 points 1 year ago (1 children)

Drastic measures can mean prevention, mitigation, or retribution. It's too late for prevention, so right now mitigation is the next best thing.

[–] kadu@lemmy.world 1 points 1 year ago

Mitigation follows the exact same "extremely delayed effects" logic I explained.

[–] Blaubarschmann@feddit.de 18 points 1 year ago (3 children)

Yes but this ain't happening, so we're fucked

[–] zcd@lemmy.ca 16 points 1 year ago (1 children)

Technically speaking we are “turbo fucked”

[–] henfredemars@infosec.pub 7 points 1 year ago (2 children)

Maximum overfucked. It will be interesting to witness the fall of civilization.

[–] GluWu@lemm.ee 2 points 1 year ago (1 children)
[–] Jumi@lemmy.world 2 points 1 year ago

We just need to hold on for another 40 years or so

[–] umbrella@lemmy.ml 2 points 1 year ago

not with that attitude.

change can happen really fast if thats what people actually want.

[–] OpenStars@discuss.online -2 points 1 year ago

On the bright siden (/s.this portion only), Trump caused the population to be lowered significantly.

It wasn't very effective, so we're still fucked.

[–] BestBouclettes@jlai.lu 4 points 1 year ago

Juuuust a bit more, and a bit more, and more just to be sure those guys aren't trying to scam us into changing the world to a better place

[–] DudeImMacGyver@sh.itjust.works 11 points 1 year ago

"This is fine."

[–] Hotzilla@sopuli.xyz 6 points 1 year ago* (last edited 1 year ago) (2 children)

Wasn't there a YouTube video few months ago were one climate scientist talked that they removed few models from the accepted list of climate models because those models started showing rapid heating. And the reason for their removal was that they predicted too fast heating, that has never happened. And these models were accurate in the past.

Edit: https://m.youtube.com/watch?v=4S9sDyooxf4&t=668s&pp=ygUWcmVtb3ZlZCBjbGltYXRlIG1vZGVscw%3D%3D

[–] hanrahan@slrpnk.net 9 points 1 year ago

That's sort of misleading though. They say they discarded the hot model runs becase paleoclimatology research tended to suggest suggest that couldn't happen. Hausfather etal. Andrew Dressler was involved and had a response on Mastodon

However :) people like Professor Janson Box etal suggested it will happen way faster then most models predict.

https://www.youtube.com/watch?v=qTdJRy1uqsc

The precautionary principal (because we have no planet B) should have us doing everything we can to get in front of this. Worst case scenario, rich asshole high emitters have to live like ordldinary folk more quickly. We can keep ignoring it until we collapse civilization like John Schellenhuber etal suggest, which does seem to be the option we've chosen.

I don't think it matters either way, we ignore it because it's inconvenient not becase we dont have the tech. We have long known how to ride a bicycle and stop flying for example... we just keep emitting, emissions increased again last year.

[–] silence7@slrpnk.net 2 points 1 year ago

The last big community run of models had a bunch of them use a new cloud model, which forecast much more heating in the future because they stopped having clouds form at some latitudes.

That hasn't happened, and isn't what's responsible for the temperature jump in 2023.