this post was submitted on 10 Jan 2024
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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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Preliminary US Greenhouse Gas Emissions Estimates for 2023 | To meet the Paris target, the US needs to average a 6.9% emissions cut every year from 2024 through 2030—more than 3x the 1.9% drop in 2023 (rhg.com)
submitted 10 months ago* (last edited 10 months ago) by silence7@slrpnk.net to c/climate@slrpnk.net
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What's going on is that the replacement of coal-fired electric generation with methane gas and renewables is cutting electric generation emissions faster than those from burning more oil in vehicles is raising them:

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[–] MrMakabar@slrpnk.net 3 points 10 months ago (1 children)

How are transport emissions increasing? The US is a rich country so EVs should replace IC cars on the road at least somewhat quickly. Globally we have 19% EV sales and most everybody in the US already has a car.

[–] silence7@slrpnk.net 5 points 10 months ago* (last edited 10 months ago)

Automakers are substituting tank-sized pickup trucks and SUVs for sedans, more than making up for the limited deployment of EVs that's happening at this point.