this post was submitted on 16 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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[–] Pyr_Pressure@lemmy.ca 46 points 1 year ago (1 children)

Probably the same chance for 2024 with el nino

[–] teft@startrek.website 28 points 1 year ago (1 children)

2025 isn't looking that great either.

[–] silence7@slrpnk.net 14 points 1 year ago (2 children)

The history of temperature rise has not been monotonic. So I'd expect a period of a few years where we don't set a new record.

[–] TWeaK@lemm.ee 14 points 1 year ago (1 children)

Yes but that doesn't mean we've reached the current peak yet.

[–] thepianistfroggollum@lemmynsfw.com -4 points 1 year ago (1 children)

Exactly, don't forget that climate change goes extreme in both directions, so we may very well face the coldest year on record too.

[–] silence7@slrpnk.net 14 points 1 year ago* (last edited 1 year ago) (1 children)

Basically no chance of that happening. Temperatures are rising, just with a bit of noise:

Monotonic would mean that each year is strictly warmer than the last one, but the noise is big enough that we sometimes get a few slightly less warm years before the next record.

The bigger picture looks like this:

[–] KISSmyOS@lemmy.world 10 points 1 year ago* (last edited 1 year ago)

The scary thing about your first graph is that it is missing the current year, where the line will precisely hit the top right corner.
I feel like not enough people realize how unprecedented this year was. It took 40 years of global warming to get from +0.3 to +0.9 and now we're making an equally big jump in 1 year.

[–] penguin@sh.itjust.works 38 points 1 year ago* (last edited 1 year ago) (2 children)

But the good news is that it'll be the coolest year for the foreseeable future 🙂

[–] set_secret@lemmy.world 4 points 1 year ago (1 children)
[–] RobertOwnageJunior@lemmy.world 1 points 1 year ago (2 children)

Not how it works actually.

[–] ramble81@lemm.ee 5 points 1 year ago (1 children)

Okay, within the bounds of your lifetime.

[–] cyberpunk007@lemmy.world 3 points 1 year ago

I found the optimist!

[–] scytale@lemm.ee 36 points 1 year ago
[–] Th4tGuyII@kbin.social 13 points 1 year ago

When I see this headline, I always have to try to resist the urge to be like "no shit it's the hottest year on record, it'a going to keep being the hottest year on record cause the planet is getting hotter on average, and we know exactly why that is"

[–] tdawg@lemmy.world 11 points 1 year ago (1 children)

For anyone who doesn't have one. I can highly recommend those dumb looking straw hats that old people wear at the beach and sporting events. Works real good at keeping you cool. Just uh, don't expect to be fashionable while wearing it lol

[–] SatanicNotMessianic@lemmy.ml 8 points 1 year ago (1 children)

Counterpoint: Nathan Lane in The Birdcage was fabulous in his floppy hat.

[–] TheBat@lemmy.world 2 points 1 year ago

"Actually it was perfect, I just never realized John Wayne walked that way"

[–] Hyggyldy@sffa.community 5 points 1 year ago* (last edited 1 year ago) (1 children)

Later: Well technically the average temperature of 2023 was actually pretty moderate, but that's only because the entire world was wrapped in a brutal ice age beginning in December.

[–] match@pawb.social 3 points 1 year ago (1 children)

turned out Captain Planet was sick of our shit

[–] rckclmbr@lemm.ee 2 points 1 year ago* (last edited 1 year ago)
[–] LoafyLemon@kbin.social 2 points 1 year ago (2 children)

Meanwhile in the UK, still waiting for the summer. :(

[–] match@pawb.social 2 points 1 year ago

didn't it hit 32 for like a week straight in September

We do live on an island directly on the middle of two weather fronts.

It’s either cold air from up north or warm air from the med that wins. Usually the cold wins unfortunately.