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submitted 1 year ago* (last edited 1 year ago) by silence7@slrpnk.net to c/climate@slrpnk.net
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[-] NoiseColor@startrek.website 21 points 1 year ago

Honestly, we are not doing it the way in the second graph. Probably not even the way it happens in the first one.

[-] Skua@kbin.social 24 points 1 year ago

Globally, we haven't even started reducing our emissions at all yet. Our line is still going up

[-] Signtist@lemm.ee 11 points 1 year ago

This is the thing people don't seem to understand. It's not that we're failing to slow down fast enough to avoid the point of no return, it's that we're continuing to speed up on our way to the point of no return.

[-] sinkingship@mander.xyz 17 points 1 year ago

The title kinda implies we get to net zero at all.

Don't get me wrong, I don't doubt that one day on Earth there will be net zero carbon emissions. But will it be because humanity plans to and will work on it or because we screwed things up so badly.

I don't have a good feeling about that.

[-] Gloomy@mander.xyz 7 points 1 year ago

Eventually there will be a global simplification. It remains to be seen if this will be by desing or desaster.

This is how a paper i read once put it and those words habe been engraved in my brain ever since.

[-] Uranium3006@kbin.social 11 points 1 year ago

At this point we all know we gotta pull all that extra co2 back out of the atmosphere and store it long term.

[-] chaogomu@kbin.social 12 points 1 year ago

Not only do we need to pull co2 out of the atmosphere, but we also likely have to start spraying ocean water into the upper atmosphere to help keep things halfway stable.

Maybe start doing tests on ocean iron seeding as well to promote open ocean algae blooms. (there's been some research, but it was done in about the single worst way possible)

The point is, we've been accidentally geoengineering the planet for centuries, we need to stop that, and do it with intention.

[-] Chinzon@beehaw.org 6 points 1 year ago

Don't worry, in a few decades mother nature will decompress it catastrophically. In honest terms there is no political will to make the necessary changes to save our society. Anyone attempting to do so is essentially committing political suicide; any attempts to do so will quickly result in their replacement with someone maintaining the status quo

this post was submitted on 20 Sep 2023
236 points (98.8% liked)

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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.

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