this post was submitted on 26 Jun 2023
6 points (100.0% liked)

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

5276 readers
740 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
6
The rapidly shrinking carbon budget (theclimatebrink.substack.com)
submitted 1 year ago by silence7 to c/climate
3 comments fedilink hide all child comments
you are viewing a single comment's thread
view the rest of the comments
[–] v2vhD7HK 4 points 1 year ago* (last edited 1 year ago) (1 children)

To put this in perspective, 250 Gt at the start of 2023 means each of the 8 billion persons on the planet get a 2.6 t/year budget if we collectively reach net zero in 2035, and a 1.16 t/year budget for 2050.

Moreover, to be fair to underdeveloped countries, it would make sense for them to have a larger allowance of this budget given that they are the farthest from having the infrastructure needed to get rid of fossil fuels while ensuring quality of life.

Considering population is still growing, that the current global average (per the article data) is around 5 t/year/person, and that this average is also still growing, we can all see that's not happening.

More on this line of thought: https://medium.com/@bumblebeeunbarred/is-britain-doing-its-bit-for-climate-58f9c78074eb

[–] silence7 2 points 1 year ago

The budget for 2°C is a fair bit larger, and a lot more attainable. I'm expecting that success looks like holding long-term average temperature to something like that.