this post was submitted on 25 Oct 2023
348 points (95.1% liked)

Climate - truthful information about climate, related activism and politics.

5151 readers
513 users here now

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:

Anti-science, inactivism, and unsupported conspiracy theories are not ok here.

founded 1 year ago
MODERATORS
 

Found in this great toot

all 35 comments
sorted by: hot top controversial new old
[–] SoggyBread@lemmy.world 87 points 1 year ago (3 children)

Wheres the scale for temperture change, yeah the colors indicate a trend from cold to warm but how warm isnt shown

[–] wintermute_oregon@lemm.ee 9 points 1 year ago (2 children)

What I’ve found as an average the change isn’t much.

What I’ve noticed watching daily trends there is a big difference.

Weird things like I can wear shorts in winter when before I needed a heavy coat.

If the earth isn’t warming than I am.

[–] KISSmyOS@lemmy.world 18 points 1 year ago

If the earth isn’t warming than I am.

Could you maybe stop? It's affecting all of us, too.

[–] Dave@lemmy.nz 6 points 1 year ago (1 children)

My work computer has that thing in the taskbar telling you about news and the weather. I swear it tells me about a record high temperature for this day several times a week.

[–] wintermute_oregon@lemm.ee 5 points 1 year ago (2 children)

I know many people who deny the climate is changing. They will use a freak snow storm to show the weather is the same.

When I was a kid it started to get cold in October, it would snow in December and be there till February in most cases. I have years of photos, so it's not just my memory.

Now, if it snows, it lasts a few days tops. In December, i can be out side grilling in shorts. I don't mind people having different opinions as to the cause or the way to fix it, but to deny it is even happening is mind-blowing.

[–] 14th_cylon@lemm.ee 11 points 1 year ago

so it’s not just my memory.

no, it is not just your memory...

[–] Dave@lemmy.nz 7 points 1 year ago (1 children)

The climate is really complex, and is the poster child for chaos theory. One of the weird things is that more snow storms and unseasonally cold weather is an expected result of global average temparature rises.

It's one of the reasons it's better to say "climate change" instead of "global warming", to help ease the confusion.

[–] wintermute_oregon@lemm.ee -5 points 11 months ago* (last edited 11 months ago)

My favorite is all the predictions were wrong.

We can’t ever figure out the weather accurately in a local region. So yeah, figuring out the global weather is going to much harder.

I don’t deny climate change. I don’t know if it man, the sun or something else. I have opinions but I think the debate is still. We need to first all agree things are changing which to me is obvious but we can’t get agreement on that.

[–] BB69@lemmy.world 1 points 1 year ago

I was about to ask the same

Like I get it’s getting warmer but what’s the trend vs the PPM

[–] Kyrgizion@lemmy.world 33 points 1 year ago (3 children)

We're doomed, and most of us don't even care. This world has become so hellish that a great many of us, conscious of it or not, just want to escape.

[–] andymouse@slrpnk.net 13 points 1 year ago (1 children)

I think people care, we're just trained into patterns of learned helplessness and isolation over generations.

There were large swathes of people who resisted during the 19th and 20th centuries, they were systematically murdered en masse. I bet it has happened many times over the centuries.

Sometimes I wonder if we've bred ourselves into either loyal obedience or dispassionate compliance because everyone else was always killed by the first group while being ignored by the second.

Or maybe it's just me 🤷‍♂️

[–] deweydecibel@lemmy.world 3 points 11 months ago

It's because most people just want to live their lives in peace, even if they're under a boot. That has always been true.

[–] Rolder@reddthat.com 4 points 1 year ago

I do what I can in terms of voting and whatnot, otherwise I try not to think about it too much.

[–] JohnDClay@sh.itjust.works 20 points 1 year ago

But we can't give up and keep emitting because we don't know how dire it will be. We shouldn't ensure the worst outcome.

Great Kurzgesagt vid on the subject https://youtu.be/LxgMdjyw8uw Especially at https://youtu.be/LxgMdjyw8uw?/t=11m11s

[–] TheDrunkard@lemmy.world 15 points 11 months ago

I read in a book written in the 90s that said in 60's the US DoD commissioned a study of threats to America, and the single biggest one was global warming. Not Russians, or Chinese, nope it was this. They knew then.

[–] FireTower@lemmy.world 13 points 11 months ago (1 children)

If only agreeing to do something was as effective as doing something.

[–] root@lemmy.world 6 points 11 months ago

I. DECLARE. BANKRUPTCY!

[–] eran_morad@lemmy.world 13 points 11 months ago

Depressing af

[–] ininewcrow@lemmy.ca 12 points 11 months ago

Somewhere in a few hundreds years time will be ....

Great Pan Global Accord To Restart Civilization ... and it will correspond with the extinction of the human race

[–] lntl@lemmy.ml 12 points 11 months ago* (last edited 11 months ago) (1 children)

looks like all these agreements are accelerating CO2 ppm

[–] arin@lemmy.world 4 points 11 months ago

Just there to quell the public so the corporations can keep polluting

[–] theneverfox@pawb.social 11 points 11 months ago (2 children)

Whenever I see this, I always wonder - what effect does the change in atmospheric composition have on humans?

[–] nyoooom@lemmy.world 8 points 11 months ago (1 children)

Directly, pollution is responsible for quite a surplus of deaths in densely populated areas.

Apart from that the CO2 isn't that much to have a significant effect on us.

Also microplastics, sadly.

[–] arin@lemmy.world 12 points 11 months ago (2 children)

People are dumber with higher CO2 concentrations. No joke bring a brilliant person and they will struggle. This is why we need good ventilation in classrooms because it can get stuffy(low O2 and high CO2)

[–] JohnDClay@sh.itjust.works 2 points 11 months ago

How high of a ppm do you need to get that effect?

[–] RandomVideos@programming.dev 1 points 11 months ago* (last edited 11 months ago)

The government started pollution so people would get dumber and not question it

source

[–] FrostyCaveman@lemm.ee 2 points 11 months ago (1 children)

Making the atmosphere more akin to stuffy offices with bad air flow, mid-afternoon, but globally. Hmm.

[–] JohnDClay@sh.itjust.works 2 points 11 months ago (2 children)

What is the co2 ppm in a stuffy office I wonder.

[–] FrostyCaveman@lemm.ee 2 points 11 months ago (1 children)

Looked into this a while ago and I seem to recall 1000-2000ppm is “very stuffy office” territory.

(At one point I worked in a really terrible office and was considering trying to measure it somehow)

[–] JohnDClay@sh.itjust.works 2 points 11 months ago (1 children)

Looks like about 350 years till we get to 1000ppm at this rate. I'm guessing we'll die of being cooked before we get much dumber, but it's an interesting side effect.

[–] theneverfox@pawb.social 1 points 11 months ago

Well here's the thing... There's a huge difference between levels where acute exposure causes something noticable, and living with exposure to something all the time

[–] onlym3@lemmy.world 2 points 11 months ago

I teach at a secondary school in the UK, in a classroom with no external windows (but with air quality monitors). After 1 hour of 30 teenagers the co2 will be at around 2000-2500ppm which I can confirm is stuffy. Highest I've seen is in the next door classroom which made it up to 3800ppm back in the summer.

It really does make you (and the kids) feel really dopey, so not exactly ideal.

[–] AnarchoSnowPlow@midwest.social 6 points 11 months ago

There is a certain atmospheric concentration of CO2 that accompanied giant dragonflies and shit. Maybe if we bring those back people will take things more seriously.