this post was submitted on 19 Apr 2024
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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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'No place in our homes' | Hydrogen blends leak twice as much in household cookers compared to gas: report | leakage rate is likely to wipe out any climate benefits of using H2 in the first place (www.hydrogeninsight.com)
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[–] Kraven_the_Hunter@lemmy.dbzer0.com 29 points 6 months ago* (last edited 6 months ago)

This article is specifically talking about the use of hydrogen blended into natural gas pipelines as a way to reduce dependence on fossil fuels for heating and cooking. Ammonia as a transport mechanism has no place here.

The current consensus in the industry is that you can replace up to 20% of the natural gas with hydrogen in a pipeline with no adverse affects. This article is indicating that there may in fact be some adverse affects.

Edited to fix some stupid autocorrects. At least it was mainly verb tense this time.