this post was submitted on 02 Sep 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.

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Why carbon capture needs a reality check (youtu.be)
submitted 2 months ago* (last edited 2 months ago) by iamroot@discuss.tchncs.de to c/climate
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[–] phoenixz@lemmy.ca 5 points 2 months ago

Carbon capture as a solution where you use power to filter out CO2 from the atmosphere is ONLY a viable strategy if we can make 100% carbon free power.

Until then you'd use 100 CO2 generating power to (after all losees) capture 30 CO2, it's dumb. If you use a solar powered system instead, you still are losing as now someone else that could have used your solar power is using 100 CO2 while you pull only 30 out...

Once everything runs on CO2 free power, THEN it makes sense to start carbon capture, until then it's only playfully pretending while making the situation actively worse.