this post was submitted on 14 Sep 2023
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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€“] admiralteal@kbin.social 5 points 1 year ago* (last edited 1 year ago) (1 children)

You can't plant old growth forests.

A huge amount of the carbon sequestration done by trees happens well below the ground and takes hundreds or even thousands of years to get effective. If you cut down an acre of trees, you'll have to plant many acres to get the same effect in any kind of human timescale, and that just won't and likely can't happen. That acre was cleared for a reason and it's unlikely just because an identical acre without trees somewhere else was in the wrong place.

Also worth pointing out that carbon capture and carbon removal/air capture are different things. Carbon capture happens at the smokestack. I know it's confusing terminology, but that's what's being discussed in this article and that is what the term means in industry use.

[โ€“] HubertManne@kbin.social 2 points 1 year ago

Thank you. Im not who you were replying to but I was confusing the terminology.