this post was submitted on 17 Oct 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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The study is this one

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[–] [email protected] 12 points 1 year ago (2 children)

Should have started it on the scale of decades 40 years ago when scientists were saying we had 40 years to fix it. Too late now, we're in the beginning of the apocalypse.

[–] [email protected] 26 points 1 year ago (2 children)

We're at a point where it's too late to avoid all impact, but we've got a very real choice about exactly how much impact we do see. There's a big difference between 1.5°C and 2°C and more.

[–] [email protected] 12 points 1 year ago (1 children)

1.5c by 2030s? lol, we'll have 1.6c in the next couple of years. it's bonkers. literally.

[–] [email protected] 3 points 1 year ago (1 children)

Yes, didn't I just read that we hit 1.5C already this year?

[–] [email protected] 3 points 1 year ago (1 children)

Only for parts of the year.

We will officially hit 1.5c once the average temperature of that year is 1.5 degrees hotter than pre industrial baseline

[–] [email protected] 5 points 1 year ago

Thanks. Please propagatw this fact more.

I hear and read it too often that people are falling into devastation mode and say, back up, we lost, its over.

However its a difference in being "over" which is 2.5 - 4.5 degrees or above.

[–] [email protected] 8 points 1 year ago

There was this moment after 9/11 when Tom Daschle proposed a 'Manhattan Project for Green Energy' to get us off foreign energy and help avoid climate change. Imagine if Al Gore had been president at the time, what might have happened. This was 20 years ago! But instead we (extremely questionably) got W. Bush and endless wars and 'drill baby drill'. Such a knife's edge for history and we came off the wrong side of it...