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Earth Just Had the Hottest 12-Month Span in Recorded History (www.scientificamerican.com)
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[-] silence7@slrpnk.net 6 points 1 year ago

Here's the thing: the outcome depends very much on what we choose to do.

Stop adding CO₂ and other greenhouse gases to the atmosphere, and temperatures will stabilize fairly quickly

The biggest part of that is to phase out fossil fuel use. Making that happen means:

  • Generate electricity without burning stuff
  • Electrify everything we can
  • Stop doing the things we can't
this post was submitted on 09 Nov 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.

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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