this post was submitted on 20 Nov 2023
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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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Solar power due to overtake oil production investment for first time, IEA says (www.reuters.com)
submitted 1 year ago by MrMakabar@slrpnk.net to c/climate@slrpnk.net
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[–] tryptaminev@feddit.de 10 points 1 year ago

It is nice that solar is finally in the lead, but it is deeply worrying, that the investions into oil are still at around 400bn $/a.

We need to be net neutral within the remaining emission budget, which is generally projected at 2050. The budget for the 1.5 °C goal at current emissions speed, runs out in 6 years

https://www.mcc-berlin.net/forschung/co2-budget.html

So these oil investments would need to have an ROI greater than 12% to become profitable within the next 6 years. Anyone who is involved in infrastructure and industry knows that to be ludicrous. Realistically these investments are projected with 30-50 years of operations. In order to meet 2050 we need zero oil investments right now