this post was submitted on 07 Nov 2024
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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.

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What are the private flights of the 1% doing to the planet? The numbers are in (www.cbc.ca)
submitted 1 month ago by Sunshine@lemmy.ca to c/climate
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[–] veganpizza69@lemmy.vg 1 points 1 month ago

When it comes to aviation in general — something only a small share of the world's population takes part in — it contributes roughly 2.5 per cent of all CO2 emissions and has thus far contributed to roughly four per cent of global warming.

haha

"Ignore the 892 Mt CO2, focus on the 15.6 Mt CO2!"

(from the paper https://www.nature.com/articles/s43247-024-01775-z )

also this:

Global commercial aviation is estimated to have emitted 892–936 Mt carbon dioxide (CO2) in 20191,2,3 and is responsible for about 4% of global net anthropogenic effective radiative forcing4,5.

(first paragraph of the text)

The invention of airplanes was a mistake that needs to be reversed urgently.