this post was submitted on 10 Jun 2024
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Climate - truthful information about climate, related activism and politics.

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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.

Recommended actions to cut greenhouse gas emissions in the near future:

Anti-science, inactivism, and unsupported conspiracy theories are not ok here.

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[–] SpaceNoodle@lemmy.world 14 points 1 month ago

The kids are alright.

[–] bolexforsoup@lemmy.blahaj.zone 5 points 1 month ago

It’s ok they’ll be demonized and harassed by the right in no time.

[–] ryannathans@aussie.zone 5 points 1 month ago (1 children)

How are Americans only just finding out about reverse cycle aircons

[–] silence7 8 points 1 month ago (1 children)

They've been used in warmer parts of the country for quite a while, but ones which remained highly efficient below freezing only became commercially available in the US a few years ago.

[–] ryannathans@aussie.zone 1 points 1 month ago (1 children)

Any idea what operating range the US ones have? Are they still r32?

[–] silence7 2 points 1 month ago* (last edited 1 month ago)

Depends. There are ones like that still sold. There are ones which don't switch to resistive heat until -10°F. Probably even colder too, but not sold where I live

[–] stabby_cicada 2 points 1 month ago* (last edited 1 month ago) (1 children)

Stupid children. Don't they understand personal consumption is irrelevant and "carbon footprints" are industry propaganda? If they actually wanted to make a difference, they should have spent more time shitposting about the 100 corporations that produce 70% of fossil fuel emissions.

[–] silence7 2 points 1 month ago

Those numbers you cite are based on "scope 3" emissions, which is to say, the emissions that are produced when the fossil fuels those companies extracted are ultimately burned.

Individual consumption of fossil fuels also needs to end. This is part of that.