this post was submitted on 17 May 2024
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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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Europe's Spending Billions on Green Hydrogen. It's a Risky Gamble (www.bloomberg.com)
submitted 6 months ago by silence7@slrpnk.net to c/climate@slrpnk.net
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To be clear: we're going to use renewable hydrogen for some things, such as fertilizer manufacturing โ€” there isn't any other way to do them sustainably. There are applications for which it's one of the most expensive choices, such as home heating, and a whole host of industrial processes and aviation sitting in between.

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[โ€“] theneverfox@pawb.social 8 points 6 months ago

I'm just not seeing the risk here..."oh no, we wasted our time on a green tech that we didn't need"

This is going to take time to learn to scale up, and even if it turns out not to be useful energy-wise, it'll still create jobs now and have alternate applications down the road