this post was submitted on 20 Aug 2026
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Climate

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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:

Anti-science, inactivism, and unsupported conspiracy theories are not ok here.

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cross-posted from: https://lemmy.ml/post/51623256

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[โ€“] amikulo@slrpnk.net 1 points 1 week ago (1 children)

There are 1.4 billion passenger vehicles in the world. So I don't think driving is necessarily the 10% cut off.

[โ€“] alienghic@slrpnk.net 1 points 6 days ago

there's about 8.3 billion people in the world right now, so driving a car is something about 16% of the world does. Though that assumes most people have one car per person, and suspect that may not be true. The wealthier people have several cars per person, which lowers what fraction of the world drives. Though I couldn't find any statistics on how many people regularly drive in the world.

For what it's worth for the "average american household" transportation is usually their largest source of emissions. https://coolclimate.berkeley.edu/calculator