this post was submitted on 14 Oct 2023
73 points (95.1% liked)

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

5197 readers
896 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
73
Refrigeration chemicals are a nightmare for the climate. Experts say alternatives must spread fast (apnews.com)
submitted 1 year ago by silence7@slrpnk.net to c/climate@slrpnk.net
13 comments fedilink hide all child comments
you are viewing a single comment's thread
view the rest of the comments
[–] umbrella@lemmy.ml 12 points 1 year ago (3 children)

didnt we fucking solve that one already

[–] silence7@slrpnk.net 13 points 1 year ago (1 children)

The US mandated a switch-over for new equipment, pursuant to the Kigali amendment. Problem is that there's a ton of older refrigerants currently in use, and if we don't actively dispose of the equipment containing them, they'll leak into the atmosphere as the equipment ages and breaks.

[–] Afghaniscran@feddit.uk 4 points 1 year ago

Yep, CO2, Ammonia and HFOs are probably our best bets at the minute to reduce global warming and keeping refrigeration systems.

[–] SomeoneSomewhere@lemmy.nz 7 points 1 year ago

We solved the ozone layer issues from refrigerant by moving from CFCs to HCFCs then HFCs. That didn't reduce the greenhouse effect though.

[–] Ataraxia@sh.itjust.works 3 points 1 year ago

We still have a US sized ozone hole, wtf are you talking about.