this post was submitted on 29 Apr 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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[–] faintwhenfree@lemmus.org 4 points 6 months ago

Further digging down now, I think you have a point, UK quotes Natural gas that's uncompressed, LNG will add more on those factors. So howarth LNG assessment probably makes more sense here.

However couple of things that bother me

  1. Study compares domestic coal and shipped LNG, not sure how reasonable that comparison is
  2. Japan is not pushing more capital on LNG, their stupidity is jumping directly to hydrogen/ammonia based economy

Also I am not advocating for starting new LNG based plants, any new investment should be towards renewables. But if there is flexibility of shifting loads between existing plants, one should prefer LNG over coal.