this post was submitted on 07 Dec 2023
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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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This start-up can convert your petrol car into an EV in just 8 hours (www.euronews.com)
submitted 9 months ago by [email protected] to c/[email protected]
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[–] [email protected] 2 points 9 months ago

Short answer, all the emissions from building a new battery are about on par with a single year of gas consumption. If you include charging from the current US electrical grid, break even is two to three years.

Your average gas car produces two to three times its weight in carbon dioxide every single year it’s on the road. The climate impact of building cars is rather small compared to the impacts of using them, even in modern EVs the co2 cost of building them is only a third of the electricity to power them off the modern grid, which itself is about half of what a gas car outputs.

Ballpark estimate

Finally, while it might improve with further agricultural electrification and carbon reductions, at present biofuels only offer a 33% reduction in co2 emissions compared to using straight gas. By contrast EVs offer a 60% to 100% reduction in fuel co2 emissions.