this post was submitted on 05 May 2025
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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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[–] YaDownWitCPP@lemmy.world 5 points 3 weeks ago (1 children)

One thing to take into consideration is that EVs are much heavier than their ICE counterparts which means they contribute to more road damage.

[–] stickly@lemmy.world 19 points 3 weeks ago* (last edited 3 weeks ago) (1 children)

Then tax by weight and not engine type. Freight trucks already don't pay their fair share in infrastructure costs.

Edit: EVs are about 18-24% heavier than their Ice equivalent. Still doesn't add up to the proposed costs.

[–] GreyEyedGhost@lemmy.ca 4 points 3 weeks ago* (last edited 3 weeks ago) (2 children)

Road wear is a 4th power formula to weight. So for a car that weighs 1.25 times the average, it would do 2.44 times the damage. These formulas may be fair. They would be vastly different if you included the damage from burning fuel in populated areas, though.

[–] stickly@lemmy.world 3 points 3 weeks ago (1 children)

Fair point, but it's still a flat tax regardless of miles driven. Current Gen EVs see a lot less miles/yr in the US vs combustion.

So at 1.25x weight with that mileage you should only expect 1.5x the cost.

I'm not a huge fan of any cars but this is a pretty regressive scheme.

[–] GreyEyedGhost@lemmy.ca 4 points 3 weeks ago

Oh, I agree. "Let's factor in this one externality on the more responsible choice while we ignore all the externalities on the alternatives."

[–] futatorius@lemm.ee 3 points 3 weeks ago (1 children)

They are fair for calculating road damage. But that would also mean that large trucks should be paying hundreds of times as much as passenger vehicles.

And that's not the only reason to tax vehicles: urban crowding, danger to pedestrians and cyclists, pollution from fossil fuels (if used), the social and political cost of dependence on fossil fuels, particulate emissions from non-combustive sources such as tires and brakes, and I'm sure there are a few more too.

[–] GreyEyedGhost@lemmy.ca 1 points 3 weeks ago

I absolutely agree, which is why I gave an example of a factor that is almost entirely ignored in those calculations.