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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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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[–] CombatWombat@feddit.online 29 points 2 weeks ago (2 children)

Economics are a strange beast because they are clearly made up, and clearly inescapable.

[–] NaibofTabr@infosec.pub 2 points 2 weeks ago (1 children)

All of human language and culture is "made up", that doesn't make any of it less consequential or "real".

[–] CombatWombat@feddit.online 5 points 2 weeks ago (1 children)

You’re using your disagreement voice to agree with me.

[–] homesweethomeMrL@lemmy.world 2 points 2 weeks ago (1 children)
[–] CombatWombat@feddit.online 1 points 2 weeks ago (1 children)

I didn't write the comment?

[–] homesweethomeMrL@lemmy.world 1 points 2 weeks ago (1 children)

Well, may people interpret "made up" to mean "fake" or "false" or "non-existent" or "lol not realz".

You didn't mean it that way but it took a little while to get to what you meant.

[–] CombatWombat@feddit.online 0 points 2 weeks ago (1 children)

I have very little control over how people interpret what I write. The word “inescapable” was the clue I left to help you resolve the ambiguity.

[–] homesweethomeMrL@lemmy.world 1 points 2 weeks ago (1 children)

I think you had a lot better results when you went with ‘constructed’. Just my 2¢

[–] CombatWombat@feddit.online 1 points 2 weeks ago (1 children)

Constructed doesn't have the pejorative connotation I was aiming for

[–] homesweethomeMrL@lemmy.world 2 points 2 weeks ago (1 children)

¯\_(ツ)_/¯

William Burroughs said, “Language is a virus from outer space.”

[–] CombatWombat@feddit.online 1 points 2 weeks ago

The more I think about this sentence, the more I like it. Thanks for sharing.

[–] Steve@communick.news 0 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

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

[–] CombatWombat@feddit.online 2 points 2 weeks ago (1 children)

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

[–] Steve@communick.news 8 points 2 weeks ago (3 children)

The study of resource management in systems.

What's yours?

[–] CheeseNoodle@lemmy.world 8 points 2 weeks 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 0 points 2 weeks 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 4 points 2 weeks ago (1 children)

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

[–] CombatWombat@feddit.online 2 points 2 weeks ago* (last edited 2 weeks 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 2 weeks ago

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

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

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

[–] Korhaka@sopuli.xyz 6 points 2 weeks ago

Recently read that the UK is on track to decarbonise 90% of the grid by the end of the current parliament. An oil crisis pushes people away from oil, who would have thought it?

[–] MachineFab812@discuss.tchncs.de 5 points 2 weeks ago

If I were trying to destroy fossil fuels from his position, all options on the table, I'm sure I could do as well or better, but my mask would have slipped by now.

Still don't expect him to survive, nor believe he's anything but committed to fossil fuel and most of the rest of his non-sense, but its kinda comforting how much he sucks at it.

[–] Sebeck012@feddit.nl 4 points 2 weeks ago

Years later in the archive holograms Donald "Leto II" Trump speaks about his golden path plan: I did what I did so that the world could be weaned of oil and US big tech, and for Europe to be militarily independent.

[–] Endymion_Mallorn@kbin.melroy.org -3 points 2 weeks ago (2 children)

We'd be even better if we used nuclear in that.

[–] Korhaka@sopuli.xyz 4 points 2 weeks ago (1 children)

We do use nuclear. Though at this point it's looking like wind/solar/battery is going to be cheaper, if it isn't already.

[–] bountygiver@lemmy.ml 4 points 2 weeks ago (2 children)

more importantly to the people in charge of the spending, deploys and gets its returns faster. Nuclear you are looking a decade before it starts being operational and then another couple decades to recoup the cost. Solar can be up and running in months and recoup within a decade.

[–] sparkyshocks@lemmy.zip 1 points 2 weeks ago

Nuclear you are looking a decade before it starts being operational and then another couple decades to recoup the cost.

By the time a new nuclear plant breaks even on the capital expenditures to build it, a competing solar plant has already been built, operated for a few decades, and been torn down/decommissioned for even newer tech. That 80-year nuclear plant has to compete with like 3 successive generations of solar plants/batteries, advanced geothermal, and maybe even commercialized fusion. Building a new nuclear plant is a decision to saddle your grandchildren with a payment plan on locked in costs of construction today.

[–] Korhaka@sopuli.xyz 1 points 2 weeks ago (1 children)

I heard of people covering the cost of solar within a year in some extreme cases during the last energy crisis.

[–] bountygiver@lemmy.ml 2 points 2 weeks ago

Depends on the accounting, if you count panels only the cost gets recouped extremely fast. Most of the cost is on the inverter and labour cost of installing them.

[–] 5715@feddit.org 1 points 2 weeks ago

Where do nuclear bros grow? Please arrive in 2026