this post was submitted on 20 Aug 2024
87 points (97.8% liked)

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

5240 readers
708 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
87
Climate scientists flummoxed by unexpected bump in global temperatures (www.motherjones.com)
submitted 2 months ago by jeffw@lemmy.world to c/climate@slrpnk.net
8 comments fedilink hide all child comments
you are viewing a single comment's thread
view the rest of the comments
[โ€“] NoiseColor@startrek.website 4 points 2 months ago (1 children)

I don't want to go into specific predictions because there are too many. But generally, scientists are very conservative with their predictions, because they don't want to lose grants. It's safe to hide behind numbers and give low estimates.

[โ€“] mindlesscrollyparrot@discuss.tchncs.de 9 points 2 months ago

I hear what you're saying, but I think the real problem is the policy makers, who are without doubt choosing to use the least scary predictions, and pushing even those targets back when they fail to achieve them.