this post was submitted on 15 Nov 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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We were supposed to hit peak emissions. Why won’t they stop rising? (www.vox.com)
submitted 13 hours ago by [email protected] to c/[email protected]
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[–] [email protected] 5 points 10 hours ago (1 children)

They're extracting as much as possible until the starship is ready and the base on mars is complete.

Or

The new alien overlords like it hot.

[–] [email protected] 5 points 8 hours ago (2 children)

Bruh even a +5°C war-torn Earth is an infinitely better place to live than Mars. Mars would just be quieter.

[–] [email protected] 1 points 2 hours ago (1 children)

It's only going to take a few more years as hot as the last two, for the ice mass at the poles to be depleted enough that the Earth will be absorbing more heat from the sun than it reflects.

This is called the Blue Ocean Event and it will set off the Clathrate Gun.

Once those happen (and they're going to, soon) the planet is quite literally going to be cooked in it's own atmosphere. Not much survives being cooked.

And while we're on the topic of apocalyptic and yet fully foreseen disasters that most people are still somehow oblivious to:

Did you know that we're going to be 40% over capacity on fresh water globally by 2030?

And that when this drought reduces humanity's numbers by several billion (and if the BOE doesn't happen first), the rest of us are still going to starve to death anyway, because 90% of top soil globally is at risk of depletion by 2050.

You might want to look all those things up, and maybe book a therapy appointment or something.

[–] [email protected] 1 points 2 hours ago

I hear your concerns, man. But a cursory look at the current science behind how we describe things like BOE and Clathrate Gun don’t leave us with mere years between now and instant hotpot catastrophe.

I don’t think it’s useful (if your goal is to promote the mitigation of these events and a livable world for future generations) to catastrophise at that pitch and make it sound like we’re fucked.

We’re not fucked. Things are going to get a lot harder. A lot harder. Much badness. But we’re not fucked. There’s room to work here. And we need to start doing a LOT of work without making it sound like starting wouldn’t do us any good.

[–] [email protected] 2 points 4 hours ago

At 5° there wouldn't be life to fight wars. Or land.