this post was submitted on 03 Jul 2023
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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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Too big, too heavy and too slow to change: road transport is way off track for net zero (theconversation.com)
submitted 2 years ago by [email protected] to c/[email protected]
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[–] [email protected] 6 points 2 years ago

I think this article neglects how few people it takes riding the bus to make a bus line worth it. It doesn't even require massive technological strides or innovation. It just takes purchasing buses and maintenance facilities, and hiring mechanics and drivers. I know that's a big upfront cost, but it pays off so fast. Even my small rural county in West Virginia, United States, has a bus system that sees high usage. I don't know for sure that Australia has the same resistance to buses as we do here, but I have my suspicions based on the article discussing how many single user vehicle users are causing issues. And I also understand that for rural Australia, that doesn't address the problem, but it still seems worth a mention

[–] [email protected] 3 points 2 years ago

Currently, a large diesel SUV typically emits a kilogram of CO₂ for every 3 kilometres of driving, compared to 15km for a light electric vehicle and 200 kilometres for an e-bike. An average electric vehicle currently emits 1kg of CO₂ every 7km.

Key takeaway I think. Vehicules that weight more than you, use energy to move themselves more than they use it to move you. It gets worse the heavier the vehicule is.

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

Cars are not the way forward to reach net zero emissions. You need to build an actual transport system, not re-model the one we currently have that is very much car-centric.