this post was submitted on 09 Sep 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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[โ€“] [email protected] 1 points 7 months ago* (last edited 7 months ago) (1 children)

OK, so we've established a person can do the math and come up with some value of long trips where its not economical to rent.

Given that a person needs to make that many long trips, how many short trips would they also need to make for the gas savings from a PHEV in EV mode during short trips to exceed the gas loss from doing long trips in a vehicle that gets somewhat lower MPG on long trips compared to a pure hybrid?

How much value might a person reasonably assign to the flexibility to take a weekend road trip without having to plan ahead and make reservations with a rental company?