this post was submitted on 13 Aug 2024
69 points (97.3% liked)

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

5240 readers
633 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
69
Does Donald Trump understand how the ocean works? Once again Monday night, he claimed that rising sea levels would create “more oceanfront property.” (wapo.st)
submitted 3 months ago by silence7@slrpnk.net to c/climate@slrpnk.net
17 comments fedilink hide all child comments
 

Access options:

you are viewing a single comment's thread
view the rest of the comments
[–] captain_aggravated@sh.itjust.works 14 points 3 months ago* (last edited 3 months ago) (4 children)

At the risk of being nerd sniped, I wonder if that's true or false. The intuitive answer is with higher sea levels more land would be underwater, meaning the land area has decreased and so its perimeter should decrease; in some cases lowlands like Florida or islands would completely disappear. But low lying basins flooding and turning into bays might offset that...Call XKCD.

[–] Taako_Tuesday@lemmy.ca 7 points 3 months ago (3 children)

Aside from that, if all the current waterfront property goes underwater, then previously undesirable land will slowly become more valuable, once we know where coastlines will land (it depends on when and at what temperature warming starts to flatten out). When that happens, it becomes another avenue for wealth transfer to the rich.

[–] subignition@fedia.io 4 points 3 months ago (2 children)

Flatten out? That's optimistic

[–] juliebean@lemm.ee 5 points 3 months ago (1 children)

well, eventually we'd run out of ice to melt.

[–] subignition@fedia.io 3 points 3 months ago

I think liquid water still expands when heated, so the oceans would still have quite some potential for sea level rise after the ice was gone.