this post was submitted on 31 Jul 2025
54 points (96.6% liked)

Climate - truthful information about climate, related activism and politics.

7054 readers
343 users here now

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.

founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
[–] Thedogdrinkscoffee@lemmy.ca 22 points 2 days ago (14 children)

It's ok. I'm already terrified.

[–] MachineFab812@discuss.tchncs.de 12 points 2 days ago (4 children)

You should be terrified that reduced cloud-cover due to the removal of sulfer from marine fuels over the last few years has had dramatic impact, increasing global temperatures.

High-enough temperatures impede plant respiration, so no, reducing carbon output alone may not be enough to keep the planet livable in a term short-enough to prevent ourselves and so many other species from going extinct.

Reducing global temperatures directly may be the only way to stay alive long enough for the effects of reduced/net-zero carbon output to ever be seen by living human eyes.

[–] phutatorius@lemmy.zip 4 points 1 day ago* (last edited 1 day ago) (1 children)

What is the relative contribution to global warming from reduced sulfur from marine engines, versus increased CO2 and greenhoue gas emissions worldwide?

Because, from this, it appears shipping is not the bigger contributor.

https://en.wikipedia.org/wiki/Environmental_impact_of_shipping

Who said anything about "the bigger" contributer? No one is calling increased cloud-cover the solution - hell, I literally stated we need it to buy time, because spoiler alert: it will take decades if not centuries for the extra CO2 we've put into the atmosphere to filter back out. We could easilly reach net-zero or net-negative CO2 emissions only to all end up dead well before seeing any positive effects.

In case you need this spelled out also: No-one is suggesting we should put sulfer back into marine fuels.

[–] Thedogdrinkscoffee@lemmy.ca 6 points 2 days ago (1 children)

I'm aware. I'm well informed. I don't think there is anything new anyone could say that could terrify me any more than I already am. Now it's just the creeping and leaping realization that our fears were correct as events prove worse than our models predicted.

[–] MachineFab812@discuss.tchncs.de 5 points 2 days ago (1 children)

What I'm saying is its ridiculous to be overly scared of potential solutions, or parts thereof. Too scared to even allow the testing is contemptably too scared for survival, and as malicious to the rest of us as those billionaires who want most of us to die.

[–] Thedogdrinkscoffee@lemmy.ca 4 points 2 days ago* (last edited 2 days ago) (2 children)

Overly scared

A curious term. We knew what we had to do a long time ago, but didn't.

Now that we're on a likely terminal path, we're suddenly willing to try unknown, unproven radical treatments and the only comfort we have is that without such radical interventions we're already dead, so there is very little left to lose.

Edit: I'm not so much against SRM as I am disapointed we didn't do the right things when we could have.

Well, I feel better now don't you?

[–] phutatorius@lemmy.zip -1 points 1 day ago (1 children)

we’re suddenly willing to try unknown, unproven radical treatments

Who;s that "we"? Do you have a mouse in your pocket?

Nobody asked me, or any of us. It's just another top-down phony "solution" pushed by the fossll-fuel industry to deflect attention from stopping greenhouse pollution at its source.

[–] Thedogdrinkscoffee@lemmy.ca 2 points 1 day ago

Well no. It's actually a desperate hail mary. Everything is an excuse to keep oil going, but SRM is legitimate science. Just reckless as fuck.

[–] MachineFab812@discuss.tchncs.de -3 points 2 days ago* (last edited 1 day ago) (1 children)

Funny thing about an adrenaline rush, is sometimes it increases your co-ordination, strength, and decision-making skills. Not everyone panics and does their best to impede anyone trying to actually triage and fix the situation.

Mean-while, these people are scientists, trying to execute a, frankly, small-scale expiriment to confirm what we already know from an accidental, world-spanning expiriment that was already done over decades. They are trying to do so in a way that, at worst, will do no harm.

... but no, you're right, nimby-ism will save us all.

[–] Thedogdrinkscoffee@lemmy.ca 0 points 2 days ago (1 children)

Save us all? Now who is delusional.

[–] MachineFab812@discuss.tchncs.de 3 points 2 days ago* (last edited 1 day ago)

Way to miss the sarcasm. I'll take just about anything between the billionaire's goal of killing not-quite-everyone(which we keep telling them will result in their deaths too, because they are idiots, demonstrating their idiocy by wanting this), and saving everyone.

OBVIOUSLY, I don't expect saving everyone to be an option, but trying is better than the doomer option of saving no-one. Mind you, we're long past the point where many endangered plants and animals could be saved without our help, just in case you wanna play the "but we deserve to die" card.

Agreeing we deserve to die doesn't mean we are allowed to just give up and take down even more entire eco-systems with us.

[–] naeap@sopuli.xyz 5 points 2 days ago

Yeah, I have the quite the same sad opinion.

But I'm pretty sure, that we aren't able to do this in a reasonable way. Especially as we don't have a real idea on what else will be affected and which new hell we will produce with that.

We're royally fucked anyway, I'm afraid

[–] Auli@lemmy.ca 1 points 1 day ago (1 children)

It never well look at all the energy we are wasting in AI and crypto. We want to scorch the earth.

If identifying with the billionaires' desires is your cope, the rest of us are no obligation to respect that.

load more comments (9 replies)