this post was submitted on 10 Oct 2023
63 points (97.0% liked)

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

5194 readers
566 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
 

In the hottest parts of the world, high temperatures and humidity will, for longer stretches, surpass a threshold that even young and healthy people could struggle to survive as the planet warms, study says

The paper is here

Figure 1 shows the locations:

Annual hot-hours under (A) 1.5, (B) 2, (C) 3, and (D) 4 °C of warming relative to preindustrial level

you are viewing a single comment's thread
view the rest of the comments
[–] somethingsnappy@lemmy.world 2 points 1 year ago (2 children)

And if the Himalayas are in trouble... it seems like there is a serious problem with the model?

[–] quicklime@lemm.ee 4 points 1 year ago

I think the brightly colored area may be the comparatively lower land just south of the Himalaya. The mountains can act as a backstop that allows heat and pollution to build up to intolerable levels while the air is not able to easily mix with cleaner and cooler air to the north.

[–] silence7@slrpnk.net 3 points 1 year ago

It's the area just south of the mountains, not the high-elevation areas.