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silence7@slrpnk.netM to Climate - truthful information about climate, related activism and politics.@slrpnk.netEnglish · 6 days ago

Why Climate Goals Aren’t a Lost Cause—Even If We Overshoot Them | Earth will likely warm by more than 1.5 degrees Celsius, but we can’t give up on trying to get temperatures back down

www.scientificamerican.com

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Why Climate Goals Aren’t a Lost Cause—Even If We Overshoot Them | Earth will likely warm by more than 1.5 degrees Celsius, but we can’t give up on trying to get temperatures back down

www.scientificamerican.com

silence7@slrpnk.netM to Climate - truthful information about climate, related activism and politics.@slrpnk.netEnglish · 6 days ago
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Why Climate Goals Aren’t a Lost Cause—Even If We Overshoot Them
www.scientificamerican.com
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Earth will likely warm by more than 1.5 degrees Celsius, but we can’t give up on trying to get temperatures back down

Archived copies of the article:

  • archive.today - should eventually load, but hasn’t as of posting time
  • web.archive.org - has text but key diagrams don’t load

The key thing here is that the less overshoot the better, and the amount of overshoot we can afford is small.

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    6 days ago

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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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