this post was submitted on 05 Jan 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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[–] [email protected] 41 points 8 months ago* (last edited 8 months ago) (14 children)

I don't like using snow as a measurement of climate change. Snow is weather. Global warming is not weather.

If the gulf stream closes, we're going to have ice ages in Europe and scorched earth and soup like oceans in the Americas.

It's bad, m'kay.

The consequences aren't if we're going to have white Christmas or how well the financial reports are for skiing resorts. It's literally the doom of most life on earth. Don't give me the "The uh planet will be fine". I don't give a shit about a planet in space. I care for the living beings on the planet. Fuck.

[–] [email protected] 11 points 8 months ago (3 children)

Snow is very noticeable. It's weather that is very pretty and visual, but also impacts your daily life.

I remember how many snow days I had back in school, and how kids now often don't have any

It's very visceral and memorable weather - most other things are vague and easy to write off, or they're a life changing catastrophe that is basically up to luck.

If snow is what makes people understand, viscerally, "things are changing very, very fast", then that's fine

That's where we are right now. People generally believe it's happening, but only intellectually - they have no sense of scale or urgency. Most still think they'll be gone by the time it gets bad, and that it's a long term problem.

Any and every way you can make people understand this is a "right now" problem helps

[–] [email protected] 4 points 8 months ago (1 children)

Up to this point, the winters where I live have definitely been getting warmer.

When I was a kid, it wasn't uncommon to have stretches of -30°c, and we used to hit or almost hit -40°c once or twice per winter. It seems like that dropped. Now, the stretches are around -20°c and we hit the -30°c once or twice per year. Instead of snow, we've been getting lots of freezing rain.

It used be be rare to hit 30°c in the summer, but we've been getting many more days that hit around 40°c. Last summer was brutal, and I hadn't seen smog from wildfires up until then. It was practically unheard of where I live.

Just wait for another handful of years. The weather is already becoming increasingly more difficult to predict.

I saw a forecast earlier where the weather person was saying that either the models are broken, or that certain parts of North America will hit historically cold temperatures. If it was accurate, parts of California might drop down to almost -40°c.

People need to learn that climate change isn't only extra heat in the summertime. It's a very complex system with lots of variables. I wish more people actually took the time to learn a bit about it. Freaky shit.

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

I'd appreciate a link to the report about California if you can find it

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