this post was submitted on 04 Apr 2025
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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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Per the author:

Also in jeopardy: Engineering + IT support for N-Wave, NOAA's internet + network provider. N-Wave transmits weather forecasting data. Internal email warns of "significant service disruptions” if contracts aren't extended.

Edit:

Since this was published, there has apparently been a bit of a reprieve as word got out about how bad this would be

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[–] mycelium@slrpnk.net 3 points 22 hours ago (1 children)

So, their front-facing research sharing will disappear as well as any content that was exclusive to it. More immediately concerning, part of their internal network is going dark. When does this start to effect weather modeling then? Because the private sector very much relies on NOAA for its forecasts, they surely don't want this either, not that it would stop them but still.

[–] silence7@slrpnk.net 4 points 22 hours ago

It's not clear exactly what will break or when; things are too chaotic to really be sure until it does