this post was submitted on 28 Apr 2026
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Climate

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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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Trump’s attempt to crush clean energy progress not going to plan, experts say (www.theguardian.com)
submitted 3 months ago by grimpy@lemmy.myserv.one to c/climate@slrpnk.net
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Donald Trump has wielded the full might of his administration to crush the progress of clean energy, which he has called a “scam” and “stupid”. But there are signs this assault is not going to plan.

In March, the US generated more of its electricity from renewable sources such as solar and wind than it did via gas, the first time clean energy has surpassed the planet-heating fossil fuel for a full month nationally, according to data from the Ember thinktank.

While this was just one month, it follows a record 2025 for renewable energy. The pipeline of new power coming online in the US is overwhelmingly green this year, too, with 93% of all electricity capacity added in 2026 set to come from solar, wind and batteries. Just 7% will come from the fossil fuels that are dangerously overheating our world.

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[–] Steve 3 points 3 months ago* (last edited 3 months ago) (1 children)

If you think economics is made up, we must have very different definitions of what economics is.

[–] CombatWombat@feddit.online 3 points 3 months ago (1 children)

I'll play ball. What's your definition?

[–] Steve 8 points 3 months ago (3 children)

The study of resource management in systems.

What's yours?

[–] CheeseNoodle@lemmy.world 11 points 3 months ago (1 children)

I think OP is confusing economics with the economy, the former is a field of research, the second is a construct theroetically based on the value of economic output but increasingly just a measure of the moods of rich people.

[–] CombatWombat@feddit.online 1 points 3 months ago (1 children)

I don't think I am. Studying car mechanics is a made-up field because humans invented cars. Studying sports medicine is a made-up field because humans invented sports. Economics can, and sometimes does, cover non-human systems, but is largely the study of emergent properties from human-created systems.

[–] homesweethomeMrL@lemmy.world 5 points 3 months ago (1 children)

Ah so made-up =/= fake. There’s yer problem.

[–] CombatWombat@feddit.online 5 points 3 months ago* (last edited 3 months ago)

Yep. Made up, like constructed or invented. The idea that there are "rules" that seem to emerge from constructed systems that we don't intend or expect is strange and wonderful to me.

[–] CombatWombat@feddit.online 3 points 3 months ago

The study of resource management in systems with an especial focus in systems of allocating scarce resources amongst humans.

[–] hanrahan@slrpnk.net -2 points 3 months ago

not OP but I'd describe it as busy work for people who find science too complicated.