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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[โ€“] ininewcrow@lemmy.ca 34 points 21 hours ago (13 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.

[โ€“] wether@slrpnk.net 6 points 12 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

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