this post was submitted on 05 Aug 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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After a Study Found Lead in Tampons, Environmentalists Wonder if Global Metal Pollution Is Worse Than They Previously Thought (insideclimatenews.org)
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[–] [email protected] 6 points 3 months ago

Actually there is a serious risk that Earth turns into Venus.

I'm sorry, but no. There's not. Not only is there not a serious risk, there's not even a slight chance. Even if we burned every drop of oil and bit of coal and released all the methane deposits, the earth still wouldn't even be close to reaching the conditions required for runaway greenhouse effect. Not for about 2 billion years, when it's estimated the sun's output will have increased sufficiently to vaporize much of our oceans.

I get that climate change is serious - my graduate thesis centered around it and carbon cycling - but please don't spread bullshit. We have enough issues to deal with already without making up more. Please fact check yourself and others.

Relevant articles you should read:

Scoping of the IPCC 5th Assessment Report Cross Cutting Issues

Low simulated radiation limit for runaway greenhouse climates

The Runaway Greenhouse: implications for future climate change, geoengineering and planetary atmospheres

Can Increased Atmospheric CO2 Levels Trigger a Runaway Greenhouse?