this post was submitted on 15 Feb 2024
28 points (100.0% liked)

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

149 readers
11 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
28
A ‘collapse’ is looming for Louisiana’s coastal wetlands, scientists say (wapo.st)
submitted 7 months ago* (last edited 7 months ago) by silence7@slrpnk.net to c/climate@slrpnk.net
7 comments fedilink hide all child comments
 

Scientists say the overwhelming majority of the state’s wetlands – a natural buffer against hurricanes – are in a state of ‘drowning’ and could be gone by 2070

...

“If this rate of sea level rise continues for another 10 or 20 years, then we would probably lose the vast majority of our wetlands in that time period,” said Torbjorn Tornqvist, a Tulane wetlands expert and the second of the study’s three authors, along with sea level expert Sonke Dangendorf.

The paper is here

top 7 comments
sorted by: hot top controversial new old
[–] pan_troglodytes@programming.dev 2 points 7 months ago (1 children)

wetlands are in a state of drowning

isnt that what wetlands do?

[–] silence7@slrpnk.net 4 points 7 months ago (1 children)

They can go from being marshy or swampy to open water. That's what's happening.

[–] pan_troglodytes@programming.dev 2 points 7 months ago (1 children)

ah, so if it's entirely open water then it's not wetlands any more. i gotcha. various species are going to need to adapt/evolve then

[–] silence7@slrpnk.net 5 points 7 months ago (1 children)

That means people too, not just wildlife. And that ends up looking like forced moves as people lose their homes.

[–] pan_troglodytes@programming.dev 1 points 7 months ago (3 children)

eh.... yes and no. I've lived in southern Louisiana and have been to the bayou any number of times - for the most part, the people that live there have houses on stilts as they deal with annual flooding from hurricanes - they also, seeming each and every one of them, own multiple boats and/or other watercraft. no, they'll be fine. the cities in southern Louisiana will be really fucked if they dont build seawalls, but they will - probably. eventually, and likely too late, but it'll happen - the Port of New Orleans is critical infrastructure, vital for international trade.

[–] silence7@slrpnk.net 7 points 7 months ago

Those kinds of adaptation measures have limits, and I don't expect them to be viable long-term. People have already moved inland to some degree, and this is an indication that more will have to.

load more comments (2 replies)