this post was submitted on 02 Nov 2023
37 points (100.0% liked)

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

149 readers
22 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
37
Researchers argue that reducing greenhouse gas emissions is not enough to combat climate change (phys.org)
submitted 1 year ago by anzich@feddit.de to c/climate@slrpnk.net
5 comments fedilink hide all child comments
you are viewing a single comment's thread
view the rest of the comments
[–] hotair@slrpnk.net 1 points 1 year ago (2 children)

Solution is a maybe an overstatement, but

  • destroy the methane. That's energetically favorable, so it can be done more easily. Makes some CO2 but it's 50x less bad that way.
  • get the carbon back out and stick it into the ground. We'll be on our way when the Mauna Loa CO2 curve bends and goes down for a year or two. That's energetically expensive, but we'll figure out a way (hopefully) to do it wherever we have solar overproduction.

Trees are nice, but it's nowhere near enough to do that.

load more comments (2 replies)