this post was submitted on 25 Oct 2023
353 points (94.9% liked)

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

5243 readers
425 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

you are viewing a single comment's thread
view the rest of the comments
[–] theneverfox@pawb.social 11 points 1 year ago (10 children)

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

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

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

[–] JohnDClay@sh.itjust.works 2 points 1 year ago (4 children)

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

[–] onlym3@lemmy.world 2 points 1 year 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.

load more comments (3 replies)
load more comments (3 replies)
load more comments (7 replies)