this post was submitted on 27 Jul 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 Just Lived Through Two of the Hottest Days Ever. Does Anyone Care? (www.rollingstone.com)
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[–] phoenixz@lemmy.ca 1 points 3 months ago

The next generations after us are facing shit storms. This all boils down to thermodynamics. We took energy at the cost of generating CO2. Taking that CO2 back, aggregating, filtering, converting, storing... Add in losses (be generous and take 50% conversion rates), we will need multiple times all the energy we took over the last two centuries to take all that CO2 out.

When I said decades of spending half our energy budget, I was very VERY generous. Reality is that we might have to be doing that for centuries, maybe.