this post was submitted on 07 Apr 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:

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[–] [email protected] 48 points 1 year ago (5 children)

I still don't get the reasoning behind these sort of geo engineering projects. Let's say, best case scenario, it works wonders and cools the planet significantly.

The fact that we found a "solution" to the warming temperatures will justify the actions if the corporations pumping tons of CO2 and methane into the atmosphere. If anything, it will encourage them to pollute more, as there is now a way to solve the problem.

De-growth is the only way to actually solve the problem. But since it's not profitable, it won't happen under the current economic system.

[–] [email protected] 13 points 1 year ago (1 children)

I definitely don't disagree with you, but if it helps it helps. At this point I think we need to reverse our damage in order to avoid disaster.

But yes, it will also give encourage more pollution unless companies are actually held responsible for their pollution.

[–] [email protected] 1 points 1 year ago

Millions of people starving in third-world countries will in no way make wealthy business executives feel "responsible" for what they're doing. They don't care about that. So if you want these companies held responsible, letting mass deaths happen isn't going to do it.

Frankly even if it would make them feel "responsible" it's a monstrous thing to allow to happen if you have any way of stopping it. IMO the people who oppose geoengineering research because they want greenhouse gas emissions to cause megadeaths are as out of touch with humanity as the executives they claim to hate.

[–] [email protected] 12 points 1 year ago

The general reasoning is that while it doesn’t help with ocean acidification or a thousand knock on effects, and most certainly doesn’t ‘solve the problem’ as you put it, such measures would blunt most of the most deadly ones, especially for poorer nations that don’t have the resources to abandon coastlines, flood, and drought prone areas.

Especially since even if all artificial co2, methane, and nitrous oxide emissions snapped out of existence tomorrow we’d still see feedback warming for years to come, and centuries to return to where we are today, killing hundreds of millions of people in the meantime.

If they work effectively, which I am admittedly personally highly skeptical of, any of these geoengineering projects could save tens of millions of people for negligible cost long after we’ve hit net zero.

I am however also skeptical that it would significantly encourage companies to pollute more, as that necessitates you to expect them to pollute less if they think millions of people will die at some point in the distant future because of it, and I think basically any graph of fossil fuel useage after we all agreed that it was killing a shit ton of people and had to be eliminated in the 90s pretty well proves that not to be the case.

I also don’t think that needless death and destruction will modivate significant political action, see Covid, it just makes people suffer.

[–] [email protected] 4 points 1 year ago
[–] [email protected] 2 points 1 year ago

Population decline isn't going to happen. The planets doomed. Its just damage mitigation at this point.