this post was submitted on 09 Apr 2025
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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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Is vehicle pollution still a problem? Yes, here’s why it still harms health and climate. (science.feedback.org)
submitted 1 week ago by [email protected] to c/[email protected]
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Main Takeaways

  • Internal combustion vehicles – those that run on gasoline and diesel fuel – produce CO~2~ and a number of air pollutants.
  • Over recent decades, big improvements have been made in reducing vehicle-emission pollution; however, it is still problematic at a global scale.
  • Transport accounts for one fifth of CO~2~ emissions globally; of this portion the majority comes from road transport (cars, motorcycles, buses, and taxis).
  • Rising atmospheric CO~2~ from vehicle emissions and other human activities has been driving recent global warming.
  • Air pollution from vehicles has health effects like respiratory and cardiovascular diseases, and even an increased risk of getting cancer.
  • You can reduce your vehicle pollution by using more sustainable transport options like electric vehicles, ride sharing, walking, bicycles, and public transport.
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[–] [email protected] 3 points 1 week ago (1 children)

I collect used engine oil and used cooking oil, filter it and, run my van off it.

Is that considered being green?

[–] [email protected] 2 points 1 week ago

Kinda sorta? The carbon still goes into the atmosphere and there’s such demand for used cooking oil to run vehicles that there have been cases of new cooking oil being mixed into used because it was more valuable for vehicles than cooking, but if it was definitely going to get burned in a waste incinerator than better than nothing.

Climate wise, electrification (either for bikes, cars, buses, or trains) remains the only option and is something everyone is going to have to do eventually, but economic wise the higher upfront costs limits access.

[–] [email protected] 5 points 1 week ago

Tires.... Car tires are a major producer of microplastics

Please please please, stop using a car for micro trips. Anything under a kilometer you can walk.. anything under 5 kilometers you can bike. Use an eBike if needed, then you can quite easily make that 20 kilometers.

Demand your government looks at the Netherlands (and now France too, apparently!) on how to do cycling infrastructure the right way. It doesn't have to be the shit with huge congested roads that we have today.

Please please stop destroying this planet, pretty please with a cherry on top?

[–] [email protected] 1 points 1 week ago (1 children)

So you’re telling me that car pollution in still in fact car pollution? Holy shit the revelation!

[–] [email protected] 1 points 1 week ago

also, microplastics from tires, asbestos from brakes