this post was submitted on 16 Sep 2024
47 points (92.7% liked)

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

5212 readers
689 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
silence7@slrpnk.net
47
Food is a huge source of methane emissions. Fixing that is no easy feat. (grist.org)
submitted 1 month ago by RvTV95XBeo@sh.itjust.works to c/climate@slrpnk.net
9 comments fedilink hide all child comments
 

Methane spends a lot less time in the atmosphere than carbon dioxide; about 20 years after it’s released, most of it will have decayed, while carbon dioxide lingers in the atmosphere for hundreds of years. But methane also generates heat much more readily than carbon dioxide — about 80 times more in its first 20 years in the atmosphere — meaning it contributes significantly towards global warming in the short term. It is good news — sort of — because by the same token, any reductions in methane emissions will have more of an impact on the climate right away.

you are viewing a single comment's thread
view the rest of the comments
[–] 14th_cylon@lemm.ee 21 points 1 month ago (6 children)

Oh fixing it is quite easy, it is just that people don't want to.

While getting whole world to switch to cars with renewable power source is an enormous undertaking and we don't know whether it is realistic, this could be fixed tomorrow. If only people wanted to.

[–] aniki@lemmings.world 10 points 1 month ago

We can't even get motherfuckers to eat slightly less meat -- they ain't stopping till the subsidies stop.

load more comments (5 replies)