this post was submitted on 13 Jun 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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[–] MrMakabar@slrpnk.net 4 points 3 months ago (1 children)

It does matter. Last year 15.5million new cars were sold in the US. Besides the US being a rich country, it has a below average share of EVs in sales. So Biden pushing this will make the transition faster, as companies set up new production.

It also matters for another reason. US oil production is likely to decline in the coming years. Currently the US is an oil exporter, but this is going to change unless the US lowers consumption. EVs are a key part of doing that. If done successfully, that means the US has less interest in protection global oil production and flows to keep prices low. So less US interventions and higher oil prices.

[–] bstix@feddit.dk 6 points 3 months ago* (last edited 3 months ago) (1 children)

Of course it matters, but not much. American car export is not very important. The flow is in the other direction. There are more European cars in USA than American cars in Europe, and then there's all the Korean, Japanese and Chinese cars all over the world, all import. A little UK in there too.

The American automobile business is a hollow shell of past dreams. Grossly speaking: Nobody but Americans buy American ICE cars and they also don't themselves.

When the foreign car manufacturers switch to electric engines, so does USA, unless you desperately want to drive a '98 Pontiac Sunfire baby.

People worldwide buy American Tesla, though they're produced in China and Germany or wherever, but at least it's still electric, so..

[–] MrMakabar@slrpnk.net 1 points 3 months ago

Exactly the two American car manufacturers are able to survive rather well so far with pretty much no sales abroad. They are still some of the largest in the world. That is besides the US being a large enough market for companies to seriously consider keeping their combustion engine technology around, if they believe it will sell. This obviously means they might lobby their home markets to keep them around as well. Stellantis is the most obvious company to maybe do that.

Bidens action turns 10% of global car sales electric(not counting other countries actions here) and forces GM and Ford to go electric.