this post was submitted on 23 May 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] 23 points 6 months ago (2 children)
  1. Planting trees has far greater benefits than just carbon capture.

  2. At best they're deluded, at worst its green washing with a side effect of free trees.

[–] [email protected] 15 points 6 months ago (1 children)

So the thing about trees is, there are right ways and wrong ways to plant them. It should be obvious that plantng a tree in a desert won't just lead to a forest, but the same is true to a lesser degree in most locations. It is necessary to choose the right locations that will have water available, and good soil, and some other conditions for the trees to thrive.

Companies doing it will most likely just dump a bunch of seeds or saplings in an area that won't support long term growth, claim the numbers, and then let the trees die off.

[–] [email protected] 9 points 6 months ago

That is probably true.

[–] [email protected] 2 points 6 months ago

Just "planting trees" can destroy local ecosystems too. Look what is happening with the Uruguayan native meadows transformed into forestry deserts.