this post was submitted on 24 Oct 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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Half a pound of this powder can remove as much CO₂ from the air as a tree, scientists say (www.latimes.com)
submitted 4 weeks ago by humanspiral@lemmy.ca to c/climate
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secret powder formula claims to be an air capture breakthrough.

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[–] Gradually_Adjusting@lemmy.world 6 points 4 weeks ago (2 children)

It's certainly tempting, but this alone isn't going to reverse the damage. That said if it was part of a full-decarbonization plan, I wouldn't grumble!

[–] humanspiral@lemmy.ca 9 points 4 weeks ago

The right price for a carbon tax is $300/ton ($3/gallon gasoline/diesel). Tax revenue paid as dividend to residents. By far, the cheapest way to avoid paying taxes on energy is cheap renewables. But if costs of capture/sequestration are lower than $300/ton, then FF companies investing in these, lowers their taxes, and does not prevent more renewables in addition to this. They are independent industries with independent skills.

CO2 levels are likely to overshoot even with 100% energy transition by 2040.

[–] Steve@communick.news 6 points 4 weeks ago

Did anyone think it would do the job alone?
The article mentions needing to both stop using fossil fuels, and pull carbon out of the atmosphere to meet goals.