this post was submitted on 12 May 2025
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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:

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[–] ininewcrow@lemmy.ca 34 points 19 hours ago (4 children)

It's ironic when you think about human history .... at one point in human development, there was a population bottleneck where there were only a few thousand individuals that we are all descended from. It basically means that we owe our present world to the survival of a few thousand people.

Now it seems our species will die out because of the greed of a small percentage of our population.

We came into being because of a few .... and we will die out because of a few.

[–] wether@slrpnk.net 6 points 10 hours ago

Pretty much no serious authority on climate predicts that global warming will lead to human extinction. The collapse of what we know as civilisation, perhaps, and even some kind of mass death event, but our species outright ending? Zero chance. Not to say that those who endure as a relict population upon an overheated, polluted, and scarred Earth will be having a great time or anything

[–] Semi_Hemi_Demigod@lemmy.world 35 points 18 hours ago (2 children)

That few is still 800 million people. Basically anyone in a developed country.

[–] eleitl@lemm.ee 1 points 1 hour ago

I think of us as the golden billion. With the consumption still growing, mostly with China's help.

[–] SendMePhotos@lemmy.world 10 points 18 hours ago

Oh my god you just blew my mind. The US is about 340m people.

[–] Cruxifux@feddit.nl 7 points 18 hours ago (2 children)

I don’t think climate change is going to mean annihilation of the human race on its own. It depends on what the people do when faced with famine on a mass scale. Water wars leading to nuclear annihilation would do it, but there also could be multiple revolts and power struggles over the world. Depending on how those go it could put us into something positive. Not without untold suffering though.

[–] untakenusername@sh.itjust.works 5 points 16 hours ago

ngl if humanity gets though the next 100 years, I kinda doubt we can all go extinct from then on.

[–] ininewcrow@lemmy.ca 8 points 18 hours ago* (last edited 16 hours ago) (1 children)

The damage we are creating will take thousands or millions of years to undo .... so the trajectory of problems is bad right now, will get worse in the next few decades and stay that way for a few centuries. That is if we don't figure out ways to make things even more worse.

And if we do get to the point of nuclear war and the inevitable nuclear holocaust after, it will take us a century to survive that, then centuries more to recover from the damage it will cause.

I do have hope that as imaginative and creative beings that we are, we may figure out ways to survive through all that.

However, I am also realistic and know how ignorant and depraved we can become in the face of disaster and our own mortality.

We've survived natural disasters in the past that were no fault of our own.

We don't know if we can survive disasters of our own making.

[–] Cruxifux@feddit.nl 8 points 18 hours ago (2 children)

I don’t really like the rhetoric of “we” are doing this. The rich, the warmongers, the imperialists, the capitalists are the ones doing it to us and the world.

[–] eleitl@lemm.ee -1 points 1 hour ago (1 children)

No raindrop feels responsible for the flood.

[–] Cruxifux@feddit.nl 1 points 56 minutes ago (1 children)

Terrible metaphor for this when the vast majority of this “flood” is being created by a small minority of people.

[–] eleitl@lemm.ee 1 points 51 minutes ago

A billion people isn't a small minority. You and me are part of it.

[–] ininewcrow@lemmy.ca 4 points 18 hours ago

"We" is a relative term when I use it here ... I don't mean specifically you ... or me ... I mean the majority of people everywhere in the world who actively don't do anything as a collective to stop all this insanity and just go about perpetuating the system that is slowly destroying all of us.

[–] running_ragged@lemmy.world 2 points 18 hours ago

It'll create a new bottleneck for sure, but I expect there to be a few communities built up by the richest of the rich to survive with as much comfortable as possible. A large number of the survivors will be their serfs, essential staff to maintain their comfort in exchange for a chance to survive.