this post was submitted on 03 Nov 2023
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[–] dudinax@programming.dev 6 points 11 months ago (1 children)

Or in the worst case, all life on Earth won't be ok.

[–] theKalash@feddit.ch 7 points 11 months ago* (last edited 11 months ago) (4 children)

No, life in general would be fine. It will be (already is) a mass extinction but earth had a couple of those and life will bounce back.

[–] DragonTypeWyvern@literature.cafe 11 points 11 months ago* (last edited 11 months ago)

The worst case scenario is turning Earth into a planet with a climate like Venus's.

A planet that proves the existence of runaway greenhouse effects btw.

It is theoretically possible that life exists there, but multicellular life is considered unlikely, and we'll probably never get to take surface samples, given it's been measured at 464 Celsius.

We probably can't fuck up the planet that badly, but toss in a nuclear exchange to greenhouse effects and an unfortunate volcanic eruption or two?

[–] novibe@lemmy.ml 5 points 11 months ago (3 children)

You say that as it’s not a big deal.

Do you really want to see a world without dolphins, pandas, tigers, anacondas..?

[–] oce@jlai.lu 6 points 11 months ago* (last edited 11 months ago) (1 children)

I don't think he's saying it's not a big deal for us, but for the planet.

[–] novibe@lemmy.ml 4 points 11 months ago* (last edited 11 months ago) (1 children)

I know, but that’s a very detached and unemotional take… Sure “life” will keep existing. But not the life we know. That we love. That we grew up loving so much.

I understand not everyone feels exactly like me. But I was absurdly fascinated by biology books and wildlife documentaries and would read and watch them religiously as a child.

Thinking of all of that just dying and ending truly breaks my heart. Almost more than anything.

Just not as much as the thought of humanity disappearing. But I know most people share that sadness.

[–] oce@jlai.lu 2 points 11 months ago (1 children)

I also don't think the person is unemotional, it's more about having the correct idea of what's actually going to happen if we don't do anything. I also think ecology needs more rationality, otherwise we get people closing nuclear plants to restart coal plants.

[–] novibe@lemmy.ml 1 points 11 months ago* (last edited 11 months ago)

You do know that the most well informed people (like active researchers in the field) are often the most pessimistic right? Like you hear on the media that “oh no we’re gonna pass 2º! I guess I won’t be able to ski as much”. But you go to a climate science conference and it’s “yeah… now that we can add more parameters and feedback loops into our models the chance of total extinction by 2100 is 99.99%. On the bright side, half of us expected it to be 100%. So kudos”.

[–] theKalash@feddit.ch -1 points 11 months ago (1 children)

We'd be dead as well, so wouldn't see them anyway.

Also, the world is pretty cool without dinonsaurs. It will still be pretty cool with what ever comes after what we currently have.

[–] novibe@lemmy.ml 5 points 11 months ago (1 children)

I can’t explain how knowing all the animals you grew up loving will die forever is sad. If you don’t feel it you don’t I guess.

[–] theKalash@feddit.ch -4 points 11 months ago (1 children)

Well, I could imagine it if I wanted to make myself sad. But I, personally, will be dead long before even the last Panda. So it's really just a hypothetical.

[–] LemmysMum@lemmy.world 2 points 11 months ago* (last edited 11 months ago)

Got mine, fuck you.

[–] Anticorp@lemmy.ml -4 points 11 months ago

It would be a shame for my anaconda if we ain't got buns, hon.

[–] captainlezbian@lemmy.world 4 points 11 months ago* (last edited 11 months ago) (1 children)

The question is on a scale of the extinction event at the end of the last ice age to the End Permian Extinction Event aka the Great Dying how bad do we want it

[–] dudinax@programming.dev 3 points 11 months ago (1 children)

Or, if instead of reducing emissions, we try to geo-engineer our way out of global warming, screw it up, and create a real snowball Earth.

[–] LemmysMum@lemmy.world 3 points 11 months ago (1 children)

As opposed to geo-engineering our way into global warming like we have been?

"Oh no, don't try anything! We might be too successful."

[–] dudinax@programming.dev 0 points 11 months ago (2 children)

Warming is bad, so cooling has to be good. Is that your logic?

[–] LemmysMum@lemmy.world 2 points 11 months ago* (last edited 11 months ago)

No, I'm just pointing out the fallacy in your comment that carbon emissions aren't geo-engineering or that reducing carbon emissions isn't either. Also that any actually geo-engineered solution, as per your definition, is going to be far less effective than the literal centuries of concerted effort to destroy the environment.

[–] oce@jlai.lu -5 points 11 months ago* (last edited 11 months ago) (1 children)

I even think humanity will survive fine as many icy places will become habitable and we're good at adapting to extreme climates. Overall it's rather our current civilisations with the bad but also the good in them that are the most endangered.

[–] dudinax@programming.dev 5 points 11 months ago (1 children)

If we manage to keep the warming to levels seen in previous warming periods, humanity might come out better on average in the long run, but the planet is heating faster than it did in those other periods and we haven't demonstrated any ability to control ourselves. We'd have to stop generating CO2 pretty soon to avoid surpassing the last great warming period.

[–] oce@jlai.lu 0 points 11 months ago* (last edited 11 months ago) (1 children)

I guess people didn't understand my point. If we don't curb our carbon emissions, we're certainly going to have a climate that we never lived and it will kill a lot of people. But it's not unlimited, at some point we will not be able emit more carbon, because there's no more or we lost the ability to do so. So while fewer than today, there will probably still be habitable places like Nothern Canada and Russia. I think humanity would be able to survive there, although much smaller and the centuries of disasters would have destroyed our civilisations as we know them.

People probably thought I'm denying the urgency to do an ecological transition, but I'm not. I'm trying to comment on what would actually happen, similarly to previous comment saying that the planet itself is not going to die.

[–] dudinax@programming.dev 3 points 11 months ago (1 children)

You're making an assumption that the feedback loops are all well understood. They might be, or maybe there will be some runaway effect, some source of carbon or other greenhouse gas that's completely unknown, gets released, and boils the oceans.

[–] oce@jlai.lu 1 points 11 months ago

Yes I am, like everyone in this thread is.